Semiconductor junction transceiver for fibre optic communication

Geddes, J.; Petersen, Paul; Chen, D.; Koeneman, K.P.

doi:10.1049/el:19780145

Cited by 10 publications

(3 citation statements)

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“…Such a component permits the use of a single fiber in half duplex links and allows a 3 dB gain in the power budget of star configuration transmissions. Several authors have examined light emission and detection with a single semiconductor component (1)(2)(3)(4). Recently, an optical transceiver optimized structure (EROS) has been proposed (5).…”

Section: Introductionmentioning

confidence: 99%

Conversational optical links using the optimized transceiver EROS

D’Auria¹,

Richin²

1981

Fiber and Integrated Optics

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Section: Introductionmentioning

confidence: 99%

Conversational optical links using the optimized transceiver EROS

D’Auria¹,

Richin²

1981

Fiber and Integrated Optics

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“…The advantages of using a single optoelectronic device for both transmitting and receiving has been recognized by several authors (1,2,3).…”

Section: Introductionmentioning

confidence: 99%

“…The advantages of using a single optoelectronic device for both transmitting and receiving has been recognized by several authors (1,2,3). When a single transceiver device is used in place of a separate emitter and detector coupled by a Y branch, there is a 6db increase in optical power coupled to the detector, since at least 3db of optical power is lost in each Y branch.…”

Section: Introductionmentioning

confidence: 99%

<title>Half-Duplex Fiber-Optic Data Transmission With A Semiconductor Junction Transceiver</title>

1978

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Much of the data transfer in computer and process control systems takes place by half duplex data transmission.Conventional approaches to implementation of half duplex fiber optic links use a separate fiber for each transmission direction or a single fiber for both directions and a Y branch. If an LED is used as a semiconductor junction transceiver (SJT) for both emission and detection of optical signals, half duplex data transmission links can be implemented with a single fiber and a single optoelectronic device at each end of the fiber.Investigation of the suitability of reverse biased LED's for use as detectors shows that responsivities higher than 1/5 that of a PIN diode can be achieved. Although the reverse biased capacitance of the LED is larger than the PIN diode, rise times as short as 3 nanoseconds have been measured for LED's used in the detector mode.Comparison of Burrus, edge emitting and large area surface emitting diodes shows that the Burrus and large area surface emitting diodes offer the best detector performance. Experimental results for a half duplex transceiver using an SJT will be presented.

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Half duplex optical communication system using an LED as source‐and detector‐device

Enomoto

Nakano

Matsushita

et al. 1989

Electron. Comm. Jpn. Pt. I

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Although optical fiber communication systems have recently been utilized in many fields, most of these have been realized by using a light source‐detector pair. Therefore, two fibers have been needed for bidirectional communication. Alternately, for small‐scale systems such as communication between personal computers and measuring systems, for which not too high a speed is required, a single‐fiber half‐duplex optical communication can be realized by using an LED as source and detector. However, the LED as source stores many excess charge carriers, and the LED as detector has a large depletion capacitance. Therefore, the transceiver must be constructed to minimize these effects for possible high‐speed communication. This paper proposes a transceiver applied to a multivibrator, which has both functions of switching between transmitting‐ and receiving‐mode and modulating the data to FSK signal. The characteristics of trial system including the methods of data‐input and demodulation are investigated. Although the transmitting speed by the proposed method depends on the LED characteristics, we have established a transmitting speed of about 200 k‐bit/s in unidirection by the trial system.

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Semiconductor junction transceiver for fibre optic communication

Cited by 10 publications

References 0 publications

Conversational optical links using the optimized transceiver EROS

Conversational optical links using the optimized transceiver EROS

<title>Half-Duplex Fiber-Optic Data Transmission With A Semiconductor Junction Transceiver</title>

Half duplex optical communication system using an LED as source‐and detector‐device

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