Educational Fiber Optics




Speed of Light Apparatus




Centuries of scientific learning culminate in this low-cost yet ingenious system which teaches students how to measure the speed of light and to understand the "why" of their learning.

In operation, the system utilizes an oscilloscope to monitor a light pulse in its passage between a transmitter and receiver, coupled with 20 meters of fiber optic cable. At the receiver, the oscilloscope displays the phase delay and basis for the calculations which will determine the speed of light through the fiber.

An integral companion to the electronic and physical components is an easily understood and often lighthearted manual which traces the steps of pioneers in optics research. Assembly instructions are included for those who purchase the Apparatus in kit form.

The Apparatus can be assembled in only a few moments for student's use, but the curriculum first offers a fascinating academic journey through the years of discovery leading to modern-day breakthroughs in optics technology and to today's frontiers.

The Apparatus consists of an electronics circuit board in a protective plastic en-closure, two fiber optic cables, test connections for all outputs and a 110V AC-to-DC power adapter. The optical fibers terminate in simple cinch connectors for easy assembly and efficient coupling. A 20MHz dual-trace oscilloscope is required.

Price Each
Cat No. Product Description 1 5 10
IF-SL-K Kit Version $119.00 $ 94.00 $ 89.00
IF-SL-A Assembled Version $159.00 $129.00 $122.00




Fiber Optic Courses


Intermediate Fiber Optic Classroom & Lab Course



An advanced fiber optics curriculum, for industrial arts, vocational school and university levels. Courses can be tailored in length from 10 to 15 weeks. Recommended prerequisites: a basic understanding of electronics and mathematics. Course includes a text for classroom or lecture, lab course containing a comprehensive series of student experiments and lab kit with all required components.

Part One of the classroom text places fiber optics into perspective as a transmission medium and describes its advantages over other media. Part Two examines fiber sources, detectors and connectors, in contrast to the distinctly different characteristics of their electronic counterparts. Part Three explains in detail how fiber optic systems are assembled. It covers link system design, installation, special fiber optic hardware, applications and equipment.

"Instructor's Edition" contains the items above, plus an answer guide, different types of optical cable, image guides, LEDs and detectors.

Price Each
Cat No. Product Description 1 5 10
IF-SC10 Student's Edition $79.00 $65.00 $60.00
IF-SC10-INS Instructor's Edition $129.00 $129.00 $129.00



Fiber Optic Mini-Course



A short course covering the basic concepts of fiber optic communications and industrial applications, intended as a supplement to other more general electronics classes. Class length is variable, to meet instructor's time contraints: five to ten 1-hour periods, plus two 2-hour experimental sessions.

The course begins with, "The History of Fiber Optics," followed by sections describing fiber optic communications systems and their individual components. Also included are a list of additional reading references and a helpful fiber optic glossary. Experimental sessions involve students in assembling and testing a fully functional fiber optic digital communication link with separate transmitter and receiver modules.

Course comes complete with a classroom manual and kit containing all required electronic components, including printed wiring boards, fiber optic emitter, detector and cable. No prior fiber optics experience or special tools are needed for assembly and demonstration. The "Instructor's Edition" contains the items above, plus an additional reference book, answer guide, overhead transparencies, assortment of optical cable, image guides, LEDs and detectors.

Price Each
Cat No. Product Description 1 5 10
IF-MC10 Student's Edition $ 29.00 $ 22.95 $ 21.25
IF-MC10-INS Instructor's Edition $115.00 $115.95 $115.25




Fiber Optic Kits


Optical Voice Link



This Industrial Fiber Optics kit "favorite" may have earned more high grades and scholastics honors for student science projects than any other. For students and experimenters alike, the Optical Voice Link is the ideal introduction for those first learning about the marvels, mysteries and science of light transmission through optical fiber. There is something fascinating, indeed, about hearing your own voice, after it has been converted into light and then coupled into, through and out of an optical fiber.

The Optical Voice Link is designed to meet a wide variety of educational, commercial and industrial applications, including: Science Projects, Home Projects for Hobbyists, Short Audio Fiber Optic Curriculums for Schools, Inexpensive Classroom Demonstrations, Hands-On Practical Industrial Training and Voice Transmission in Critical Electrical Isolation Applications.

The Optical Voice Link can be extended up to 60 meters.

Kit Includes: Printed Wiring Boards, Switches, Electronics, Microphone, 8ohm Speaker, Three Meters of Plastic Fiber Cable, an Uncomplicated Tutorial and Step-by-Step Assembly Instructions. No prior Fiber Optics experience, special tools or training are needed to build, use and enjoy the multiple applications of this kit. Some experience with soldering is recommended for completion of the unassembled version.

Price Each
Cat No. 1 5 10
Unassembled
IF-OVL10-K
$44.95 $36.95 $33.95
Assembled
IF-OVL10-A
$87.00 $72.00 $67.00



Educational Communication Kit



Our most popular product for students in grades 9 and above. Also a favorite among experimenters, due to its versatility. The Communication Kit is an easy-to-construct, digital link which promotes learning about fiber optics the "hands-on" way. The completed data link is suitable for simple science projects, high-voltage isolation and computer interfaces.

Kit Includes: Matched Fiber Optic Transmitter and Receiver, One Meter of Fiber, Printed Wiring Boards, Polishing Film and all other required Electronic Components. Included is a Comprehensive Booklet which explains the Basics of Fiber Optics, Theory of Operation, Kit Assembly and Instructions for Conducting Multiple Experiments. We do recommend some soldering experience for assembly.

NEW LOWER PRICE!
Price Each
Cat No. 1 5 10
ED-FIBER 1 $14.00 $12.00 $ 9.40



Science Project Kit



Learn about fiber optics the easy way by experimenting and building fascinating, functional projects. No prior experience is needed. Our practical, 224-page text begins with easily grasped discussions about fiber optics fundamentals. Next are eight lab experiments, and a final section with five intriguing projects, including "Getting Acquainted with a Light Pipe", "AM Fiber Optic Receiver", and "Fiber Optic Light-Pen Cable". Finished products such as an analog voice link and a light pen have many daily uses and applications to further study.

Kit Includes: All necessary Fiber Optic Components, Connectors and Cable. Ideal for Science Projects in advanced Junior High and High School Classrooms.

Price Each
Cat No. 1 5 10
IF-E33 $44.00 $37.00 $34.00



Lab Course & Lab Kit



The core element of the Lab Course is a 60-page technical manual, written in an easy-to-understand style. It fits well with any text or course on fiber optics, and contains seven ready-to-use experiments:
The experiments permit students to work with state-of-the-art opto-electronic components and connectors unique to fiber optics and later apply their new knowledge to a practical problem.

Kit Includes: Optical Light Pipe, Fiber Optic Cable, Splices, Connectors and Polishing Film, with LED's, Photodetectors, Transmitter and Receiver Electronics. No special tools, training or prior experience with fiber optics is required.

Price Each
Cat No. 1 5 10
Lab Manual
IF-LM
$ 8.50 $ 6.50 $ 6.00
Lab Manual w/Kit
IF-LMH
$39.95 $32.95 $30.00



Plastic Fiber Tool Kit



A tool kit exclusively for use with jacketed, 1000µm core plastic fiber. It contains a No-Nick fiber stripper, hot knife cutting tool, termination fixture and con-venient carrying case. The hot knife and termination fixture aid in cutting fiber and making the AMP, dry no-polish connectors. With this kit, there will be no more nicked or damaged fibers from using common wire strippers.

Cat No. Price
IF-TK1 $89.00



Designer's Kits



A "creativity-friendly" kit for techni-cians, exper-imenters, scientists and enter-prising students who require prototypes or special-purpose interfaces requiring fiber optics capabilities. This very low-cost "active-link" requires a single +5-volt supply and interfaces with all TTL/CMOS logic. It includes 10 meters of 1000m optical cable; efficient dry, non-polish connectors, bulkhead interfaces and splices; integrated detector(s) and emitter(s); and top-quality printed wiring boards. Full instructions and technical data sheets complete the package. The operable range of both kits can be extended to 60 meters with additional cable purchased separately. The Designer's Kits have been the basis of many fiber optics "brainstorms".

Price Each
Cat No. 1 5 10
Single Channel
IF-SD11
$89.95 $70.88 $62.00
Bi-Directional
IF-DD11
$169.95 $139.00 $122.00



Experimenter's Kit

Our least expensive kit ideal for designing experiments, original science projects and short-distance optical isolation applications. Included are one meter of 1000µm plastic optical fiber, matched LED and photodetector, fiber optic connectors, instructional design information and application hints. This kit is recommended for beginning hobbyists, experi-menters and students.

Price Each
Cat No. 1 5 10
IF-E10 $6.95 $5.95 $5.39



Executive Overview of Fiber Optics



An invaluable fi-ber optics primer for business people in sales, managerial positions, purchasing and other non-technical professions linked to the financial potential of fiber optics developments. This handbook approaches the subject non-mathematically and separates it into sections on the principles of fiber optics, system components (such as the fiber itself, receivers and transmitters), optical inter-connects, completed systems, test equipment and tools. Included are a list of references (books, magazines, and professional organizations) and a glossary of terms used in the handbook and the field of fiber optics. No prior knowledge of the subject is needed to understand and benefit from the business-potential discussions in this handbook. Revisions to accommodate technological advances, are published regularly and constitute an important market survey tool.

Price Each
Cat No. 1 5 10
IF-EF01 $8.50 $6.90 $6.50




General Fiber Optic Supplies


Plastic Fiber Polishing Kit

A kit specifically formulated to ensure precise polishing of plastic fiber ends. Contains full instructions with diagrams and two sheets of 10 x 4cm of 600-grit and 3m polishing film.

Price Each
Cat No. 1 5 10
IF-C-PK $6.99 $6.25 $5.78



Hot Knife

A special tool for producing clean cuts through plastic fiber of all types and diameters. Used just like a soldering iron or wood burning tool. No experience required. Heating element has 4-ft. cord. Replacement blades are the standard X-ACTO type.

Price Each
Cat No. 1 5 10
IF-HK $19.95 $17.50 $15.95



Fiber Optic Assortment

An assortment of 6 different fibers that could cost many dollars if purchased by themselves. Assortment includes different types of grass fibers, jacketed and unjacketed plastic fibers, multi-fiber light guides and coherent fiber bundles.

Price Each
Cat No. 1 5 10
IF-FGB $5.99 $5.30 $5.00



Unjacketed Plastic Fiber

This versatile fiber is particularly suited to simple illumination and demonstration applications such as illuminated maps, lights for model railroads/airplanes, Christmas tree lighting and embroidering into fabric. It is PMMA material, attenuation <400dB/km @ 660nm, numerical aperture 0.65.

Cat No. Product Description Price
IF-C-U250 250µm dia, 10m length $3.00
IF-C-U500 500µm dia, 10m length $3.00
IF-C-U1000 1000µm dia, 10m length $8.00
IF-C-U2000 2000µm dia, 5m length $17.00



Fiber Bristles

Packages of 1-meter lengths of fiber for use in making fiber optic lamps, map and modeling building, weaving and other illumination type projects for which short lengths of fiber are ideal.

Cat No. Product Description Price
IF-C-U250 250µm dia, 10m length $3.00
IF-C-FB250 250µm dia, 50per bndl $10.00
IF-C-FB500 500µm dia, 50per bndl $10.00
IF-C-FB1000 1000µm dia, 25per bndl $17.00
IF-C-FB2000 2000µm dia, 10per bndl $29.00



Fluorescent Fiber
red, green, blue

This is a unique fiber that glows in the presence of light. It is useful for decorative displays and Christmas displays as well as conventional communications applications. Fiber color extends through the entire fiber core. Standard stock item is .5mm in diameter and is available in three fluorescent colors.

Cat No. Product Description Price
IF-C-U250 250µm dia, 10m length $3.00
IF-C-R500 Red, 2m Length $6.95
IF-C-G500 Green, 2m Length $6.95
IF-C-B500 Blue, 2m Length $6.95



Coherent Light Guide

This fiber optic component is approximately 1 inch long and 1/4 inch square is composed of thousands of small fiber that transmits a coherent optical image from one end to the other. Ideal for demonstrating the miniaturization of fiber optics and also how coherent fiber optics bundles can be used to transfer an image from one point to another.

Price Each
Cat No. 1 5 10
IF-CLG $5.99 $5.30 $5.00



Fiber Sampler Kit

Variable-size optical fibers for the creative model builder, student or experimenter with varying cable needs. Contains 5m of 250µm, 5m of 500µm, 0.3m of 16, 32, 48 and 64 fiber jacketed light guides.

Price Each
Cat No. 1 5 10
IF-E44 $14.00 $12.00 $ 9.50



LC Splice Kit

The solution for extending/mending jacketed 1000µm plastic fiber. Kit contains all the retention clips, fiber sleeve and assembly instructions to complete 10 splices. No polishing, adhesives or special tools required.

Price Each
Cat No. 1 5 10
IF-C-S10 $6.90 $6.25 $5.75



LC Connector Kit

All components and complete instructions needed to forge two bulkhead connections for jacketed 1000m core, plastic fiber. No polishing, adhesives or special tool required.

Price Each
Cat No. 1 5 10
IF-C-C10 $8.25 $7.40 $6.79



Communication Fiber

Polyethylene-jacketed PMMA plastic fiber, attenuation <400dB/km @ 660nm, numerical aperture 0.65.

Price Per Meter
Cat No. 1 10 100 1000
Simplex
SH-4001
$1.80 $1.20 $ .99 $ .79
Duplex
SH-4002
$3.50 $2.40 $2.12 $1.43




Industrial Fiber Optics




IF-D93
Plastic Fiber Optic Photodarlington
IF-D92
Plastic Fiber Optic Phototransistor
IF-D91
Plastic Fiber Optic Photodiode
IF-E91
Plastic Fiber Optic Emitter
IF-D95
Plastic Fiber Optic Photologic Detector


IF-D93 & IF-D92

1. Emitter, 2. Collector
IF-D92 White dot on pkg.
IF-D93 Red dot on pkg.
IF-D91 & IF-E91

1. Cathode, 2. Anode
IF-D91Orange dot on pkg.
IF-E91 A Blue dot on pkg.
IF-E91 B Green dot on pkg.
IF-D95

1. Ground, 2. Output, 3. Vcc
IF-D95T Yellow dot on pkg.
IF-D95OC Chestnut dot on pkg.


Features


Applications


Introduction

These devices are in Industrial Fiber Optics' family of low-cost, medium-frequency, short-distance fiber optic emitters and detectors. Each emitter and detector consists of a PVC housing, an internal active element such as an LED or photodetector and a cinch nut to hold the fiber in place. The PVC housing retains the active element and the cinch nut while optimizing coupling between the active element and the jacketed 1000 µm plastic fiber.

Working with this family of fiber optics is simple: No special tools or training required. Only a sharp knife or razor blade is needed to terminate the plastic fiber. When the fiber is inserted in the emitter or detector, tighten the cinch nut. Thereafter, the fiber can be removed simply by loosening the nut.

The IF-95T contains a photologic detector with a totem-pole output and the 95OC is a similar detector with an open-collector option. Both versions contain an IC with a photodiode, linear amplifier, voltage regulator, and Schmitt trigger. The devices feature TTL/CMOS compatible logic level output which can drive upto 5 TTL over supply voltages ranging from 4.5 to 16 volts.

Maximum Ratings (TA=25°C)



Operating and Storage
Temperature Range (TOP,TSTG)
-40° to 85°C
Junction Temperature (TJ) 85°C (IF-D93, IF-D92, IF-D91, IF-E91 only)
Soldering Temperature
(2mm from case bottom) (TS) t£5 s
240°C
Collector Emitter Voltage (VCEO) 15 V (IF-D93); 30V (IF-D92)
Reverse Voltage (VR) 3 V (IF-E91 only)
Emitter Collector Voltage (VECO) 5 V (IF-D93, IF-D92 only)
Collector Current (IC) 50 mA (IF-D93, IF-D92 only)
Collector Peak Current (ICM) t=1ms 100 mA (IF-D93, IF-D92 only)
Power Dissipation (PTOT) TA=25°C 100 mW
De-rate Above 25°C 1.33 mW/°C
IF-E91A IF-E91B
Forward Current 50mA 100mA
Surge Current (IFSM) t£10µsec 2A 2A
IF-D95 ONLY
Supply Voltage (VS) 18V
Voltage at Output Lead (IF-D95OC only) 35V
Sinking Current (IC) 50mA
Source Current (IO) (IF-D95T only) 10mA



Characteristics (TA=25°C)
(IF-D93, IF-D92, IF-D91, IF-E91)

Parameter Symbol Value Unit
Maximum Photosensitivity
(IF-D93, IF-D92, IF-D91)
lPEAK 850 nm
Spectral Bandwidth (S=10% of SMAX)
(IF-D93, IF-D92, IF-D91)
Dl 400-1100 nm
Switching Times (10% to 90% and
90% to 10%) (RL=1K, VCE=5 V,
l=880 nm) See Figure 2. (IF-D93 only)
tr,tf 5, 2.5 ms
Responsivity
@ 880 nm
@ 623 nm
R 400*, 100**, 0.4***
200, 50, 0.2
µA/µW
µA/µW
Collector Dark Current (VCE=15 volts) ICEO < 100 nA
Breakdown Voltage (IC=100 µA)
(IF-D93)
BVCEO ³15 V
Breakdown Voltage (IC=100 µA) BVECO ³5 V
Breakdown Voltage (IC=100 µA)
(IF-D92)
BVCEO ³30 V
Saturation Voltage
(IC=0.4 µA, H=10 µW) (IF-D93)
(IC=250 µA, H=100 µW) (IF-D92)
VCE(sat)
VCE (sat)
1.10
0.15
V
V
IF-D91 ONLY
Rise & Fall Times (10% to 90% &
90% to 10%) (RL=50W, VR=20V, l=850nm)
tr,tf 5 ns
Total Capacitance CT 4 pF
Dark Current (VR=30 volts, EE=0) ID <60 nA
Reverse Breakdown Voltage V(BR)R 60 V
Forward Voltage Vf 1.2 V
IF-E91 ONLY
Parameter Symbol IF-E91A IF-E91B Unit
Peak Wavelength lPEAK 950 880 nm
Spectral Bandwidth, 50% IMAX Dl 40 80 nm
Output Power Coupled into Plastic Fiber
(1mm core diameter). Distance lens to fiber
£0.1mm, 10cm polished fiber, 1F=10mA)
Fmin 50 100 µw
Switching Times (10% to 90% &
90% to 10%) (RL=47W, IF=10mA)
tr, tf 1.0 0.5 µs
Capacitance C0 25 25 pF
Forward Voltage (IF=50mA) Vf 1.5max 1.7max V
Temperature Coefficient, lPEAK TCl 0.3 0.3 nm/K
*IF-D93, **IF-D92, ***IF-D91



Characteristics (TA=25¡C)
(IF-D95 ONLY)


Parameter Symbol Value Unit
Peak Sensitivity lPEAK 800 nm
Spectral Sensitivity (S=10% of SMAX) Dl 400-1100 nm
Operating Voltage (max) VCC 16 V
Supply Current (max) ICC 12 mA
Light required to trigger VCC=5 V, RL=1 K µW
IF-D95T
High Level Output Voltage (IOH= -1.0 µA) VOH VCC-2.1 V
Low Level Output Voltage (IOH= 16 mA) VOL 0.34 V
Output Rise and Fall Times (f= 10.0 KHZ,
RL= 10 TTL Loads) (max)
tr, tf 70 ns
Propagation Delay, Low-High, High-Low
(f= 10.0 KHZ, RL= 10 TTL Loads)
tPLH, tPHL 8.0 µS
IF-D95OC
High Level Output Current (VOH=30 V) IOH 100 µA
Low Level Output Voltage (IOL=16 mA) VOL 0.4 V
Output Rise and Fall Times (f= 10.0 KHZ,
RL=300½) (max)
tr, tf 100 nS
Propagation Delay, Low-High, High-Low
(f= 10.0 KHZ, RL=300½)
tPLH, tPHL 8.0 µS



IF-D91 - Circuit diagram for measuring rise and fall times. IF-D91 - Typical detector response versus wavelength. IF-D92 - Typcial detector response versus wavelenght. IF-D92 - Rise and fall times of phototransistor.
IF-D93 - Typical detector response versus wavelenght. IF-D93 - Rise and fall times versus load resistance. IF-D95 - Typical detector response versus wavelenght. IF-D95 - Normalized threshold irradience vs. amb. temp.
IF-E91 - Normalized power launched versus forward current. IF-E91 - Typical spectral output versus wavelength.




Figure 3. Cross-section of fiber optic device.

Fiber termination instructions:

  1. Cut off the ends of the cable with a single-edge razor blade or sharp knife. Try to obtain a precise 90-degree angle (square).
  2. Insert the fiber through the locking nut and into the connector until the core tip seats against the internal micro-lens.
  3. Screw the connector locking nut down to a snug fit, locking the fiber in place.




Figure 4. Case outline.


Figure 5. Case outline. (IF-D95 ONLY)




To Order,

Please Call Toll Free at (800) 811-5208

Inside the Phoenix-Metro Area Please Call (602) 464-2485



©1995 Circuit Specialists, Inc.