Coherent light generators – Particular active media – Semiconductor
Patent
1997-04-18
1999-07-06
Bovernick, Rodney
Coherent light generators
Particular active media
Semiconductor
372 36, H01S 304, H01S 318
Patent
active
059205857
ABSTRACT:
A laser diode package having an optical power monitoring function includes a monitor diode for monitoring an optical power of the light emitted from a laser diode. In the laser diode package, an optical member has a projection window for advancing the light emitted from the laser diode to a desired direction and a reflection surface from which the light emitted from the laser diode is reflected. The monitor diode receives the light reflected from the reflection surface of the optical member in order to monitor an optical power of the light emitted from the laser diode. A slot is installed on an area except for an optical path which is formed by the light projected via the projection window of the optical member, for shielding ambient light. Thus, the laser diode package having an optical power monitoring function prevents a mix-operation of the monitor diode due to the ambient light.
REFERENCES:
patent: 5410468 (1995-04-01), Horinouchi
patent: 5570333 (1996-10-01), Katayama
patent: 5600621 (1997-02-01), Noda et al.
"Vertical-Cavity Surface-Emitting Lasers for Optical Data Storage" SHIN et al., Jpn. J. Appl. Phys. vol. 35 (1996) pp. 506-507, Part 1, No. 1B, Jan. 1996.
Kim Il
Park Chun-Seong
Bovernick Rodney
Leung Quyen Phan
Samsung Electronics Co,. Ltd.
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