Driving circuit of laser diode and optical transmission device

Details Driving circuit of laser diode and optical transmission device Driving circuit of laser diode and optical transmission device

1997-07-01

1999-02-09

Sanghavi, Hemang

Coherent light generators

Particular component circuitry

Optical pumping

H01S 300

Patent

active

058704183

ABSTRACT:
An optical transmission device which is used for a short range optical data link or an optical communication system for subscribers and more particularly requires no automatic optical power control minimizes the turn-on delay time of a laser diode and allows unformatted optical signal transmission by fixed level decision receiving system. By applying a fixed-bias electric current which is not more than the electric threshold current value of the laser diode to the laser diode, the turn-on delay time of the laser diode can be minimized, and the extinction level can be lowered by it, and the fixed level decision receiving system can be used, and the optical receiver circuit can be simplified more.

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42nd Electronic Components and Technology Conference, May 1992, San Diego, US, pp. 115-119; Takai et al.: Subsystem Optical Interconnections using Long-Wavelength LD and Singlemode-Fiber Arrays.
The 1992 Spring Meeting of Electronic Information Communications Association; T. Odagawa et al.: Lasting Delay Characteristics of Strained-Layer Quantum Well Lasers.
OCS92-30, Aug. 5, 1992, pp. 31-38, A. Takai et al.: Sub-Systems Optical Interconnections Using Long Wave-Length Laser Diode and Single-Mode Fiber Arrays.
B-1008, Sep. 8, 1992, pp. 4-160, Hamasaki et al.: APC Free Zero-Bias Modulcation of an Alignment-Free Optical Coupled 4-Channel Optical Module.

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