Title:
SEMICONDUCTOR LASER MODULE WITH THERMOELECTRON COOLING ELEMENT
Document Type and Number:
Japanese Patent JP3226696
Kind Code:
B2
Abstract:
PURPOSE: To widen a frequency band by preventing the cavity resonance generated between a stem and a metallic holder and erasing the dip in resonance in a small-signal frequency characteristic without impairing a cooling capacity which is a trade-off with a high-frequency characteristic.
CONSTITUTION: This semiconductor laser module with a thermoelectron cooling element has a structure formed by mounting the stem 9 mounted with a semiconductor laser 1 on a thermoelectron cooling element 10 for controlling the temp. of this semiconductor laser 1 and projecting the metallic holder 12 for fixing a lens 4 for condensing the light emitted from the semiconductor laser 1 into a case 11. The stem 9 and metallic holder 12 described above are connected with each other through a conductive plate material.
Inventors:
Tsuyoshi Tanaka
Satoshi Aoki
Satoshi Aoki
Application Number:
JP1609894A
Publication Date:
November 05, 2001
Filing Date:
February 10, 1994
Export Citation:
Assignee:
Nippon Opnext Co., Ltd.
International Classes:
G02B6/42; H01S5/00; (IPC1-7): G02B6/42
Domestic Patent References:
| JP4359207A | ||||
| JP5323158A | ||||
| JP4337688A | ||||
| JP58511U |
Attorney, Agent or Firm:
Yasuo Sakuta
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