Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-11-29
2005-11-29
Porta, David (Department: 2878)
Coherent light generators
Particular active media
Semiconductor
C398S130000
Reexamination Certificate
active
06970489
ABSTRACT:
A highly sensitive and inexpensive spatial optical transmission system using an LD (Laser Diode) as a light source and making use of the characteristics of a light receiving element is provided. The system includes a laser chip oscillating a laser beam, and a light receiving element receiving and converting to an electric signal the laser beam emitted from the laser chip and propagated through a space. The laser chip oscillates a laser beam having a wavelength of which absorption coefficient at the light receiving element is in a range of 0.001 to 0.3 μm−1.
REFERENCES:
patent: 5130563 (1992-07-01), Nabet et al.
patent: 5140384 (1992-08-01), Tanaka
patent: 5680241 (1997-10-01), Sakanaka et al.
patent: 5818619 (1998-10-01), Medved et al.
patent: 5986787 (1999-11-01), Ohshima et al.
patent: 6020590 (2000-02-01), Aggas et al.
patent: 6198800 (2001-03-01), Garland et al.
patent: 6310707 (2001-10-01), Kawase et al.
patent: 6485998 (2002-11-01), Frahm et al.
patent: 6630994 (2003-10-01), Morris et al.
patent: 0 491 384 (1992-06-01), None
patent: 0 632 511 (1995-01-01), None
patent: 0 859 255 (1998-08-01), None
patent: 1 079 550 (2001-02-01), None
patent: 60063977 (1985-04-01), None
patent: 4-144396 (1992-05-01), None
patent: 6-252856 (1994-09-01), None
patent: 10-154825 (1998-06-01), None
patent: 10-190584 (1998-07-01), None
patent: 11-26816 (1999-01-01), None
Singh, J., “Semiconductor Optoelectronics Physics and Technology”, McGraw-Hill, Inc., pp. 364-369 and 685.
Introduction to Optical Electronics, A. Yariv, Published by Maruzen Kabushiki Kaisha, 1988, pp. 402-403.
Monbleau Davienne
Nixon & Vanderhye P.C.
Porta David
Sharp Kabushiki Kaisha
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