Semiconductor laser and beam splitting devices, and optical info

Details Semiconductor laser and beam splitting devices, and optical info Semiconductor laser and beam splitting devices, and optical info

1993-01-12

1994-11-15

Bovernick, Rodney B.

Coherent light generators

Particular component circuitry

Optical pumping

369121, H01S 300

Patent

active

053655354

ABSTRACT:
A semiconductor laser device includes a semiconductor laser, a signal generating circuit, a modulation circuit and a drive circuit. The semiconductor laser has an active layer including at least two light-emitting layers having different energy levels. A high-frequency signal having a predetermined frequency is generated by the signal generating circuit. The signal width of the high-frequency signal is modulated by the modulation circuit in accordance with an information signal. The semiconductor laser is driven by the drive circuit in accordance with the signal modulated by the modulation circuit.

REFERENCES:
patent: 4982408 (1991-01-01), Shimizu
patent: 5060212 (1991-10-01), Fujita et al.
ISOM "911, International Symposium on Optical Memory 1991 Technical Digest," High-Speed Magneto-Optic Drive With Overwriting and Read-Verifying Functions, by Akinori Watabe, et al., Oct. 1-4, 1991, pp. 127 and 128.

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