Vertical cavity surface emitting laser driving circuit

Details Vertical cavity surface emitting laser driving circuit Vertical cavity surface emitting laser driving circuit

1998-06-12

2000-05-23

Healy, Brian

Coherent light generators

Particular component circuitry

Optical pumping

372 26, 372 28, 372 43, 372 50, 372 92, 372 98, H01S 300

Patent

active

060673079

ABSTRACT:
A current driver circuit for a vertical cavity surface emitting laser (VCSEL), flip-chip bonded to a CMOS device. In a preferred embodiment, the circuit includes only two transistors. Specifically, a P-channel metal-oxide semiconductor (PMOS) source supplies a current under the control of a tuning voltage (Vtune) while an N-channel metal-oxide semiconductor (NMOS) transistor acts as a high-speed current shunt that modulates the current flowing through the VCSEL, and hence its emitted power.

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"3-D intergration of MQW Modulators Over Active Sub-Micron CMOS Circuits: 375 Mb/s Transimpedance Receiver-Transmitter Circuit"; IEEE Photonics Technology Letters, vol. 7, No. 11, p. 1288-1290, Nov. 1995; A. V. Krishnamoorthy etal.
"A Low-Power 1-Gb/s CMOS Laser Driver For A Zero-Bias Modulated Optical Transmitter"; IEEE Photonics Technology Letters, vol. 9, No. 7, p. 997-999, Jul. 1997; L. Chen etal.
"High Speed Operation Of Hybrid CMOS Vertical Cavity Surface Emitting Laser Array"; Electronics Letters, vol. 27, No. 13, p. 1189-1191; 20th Jun. 1991 .

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