| US 7,457,337 B2 | ||
| Optical module having case grounding using bypass capacitor | ||
| Jiaxi Kan, San Jose, Calif. (US); Yen-Ping Ho, San Jose, Calif. (US); and Tianshu Wan, San Jose, Calif. (US) | ||
| Assigned to Intel Corporation, Santa Clara, Calif. (US) | ||
| Filed on Feb. 01, 2005, as Appl. No. 11/49,622. | ||
| Prior Publication US 2006/0171431 A1, Aug. 03, 2006 | ||
| Int. Cl. H01S 3/00 (2006.01) | ||
| U.S. Cl. 372—38.1 [372/38.02; 372/38.07; 385/88; 385/89; 385/92; 385/93; 385/14; 398/118; 398/135; 257/678; 257/664] | 17 Claims |
| 1. An apparatus, comprising:
a top open transmitter optical subassembly (TOSA), the TOSA having:
a laser diode having an anode and a cathode;
a first capacitance having a first terminal coupled to the laser diode anode and a second terminal coupled to a case of the
TOSA;
a power supply coupled to the laser diode anode and to the first terminal of the first capacitance;
a second capacitance having a first terminal coupled to the TOSA case and the second terminal of the first capacitance, the
second capacitance having further a second terminal coupled to the power supply, to the laser diode anode, and to the first
terminal of the first capacitance; and
a switch having an input terminal coupled to the first terminal of the second capacitance, to the TOSA case ground, and to
the second terminal of the first capacitance, the switch having further a first output terminal coupled to a TOSA case ground,
a second output terminal coupled to an electrical ground for the apparatus, and a third floating output terminal.
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