Polarization insensitive amplification device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5295016
SERIAL NO

07891640

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A polarization-independent amplification device comprising an optical semiconductor amplifier. The amplification device input signal is fed to one side of the amplifier and a reflector is provided at the other side. The amplification device output signal, formed by the amplification device input signal reflected by the reflector and amplified by the amplifier, is taken off at the first side of the amplifier. The reflector is reciprocal, a signal or signal component fed thereto and having a polarization perpendicular to the principal axis of the amplifier being reflected as a reflection signal having a polarization which is virtually parallel to said principal axis and vice versa.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KONINKLIJKE KPN N.V.THE HAGUE, NL118
KONINKLIJKE PTT NEDERLAND N.V.GRONINGEN11

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Van, Deventer Mattijs O Leidschendam, NL 11 114

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
* 5010586 Optical two-way transmission system with loop reflector modulator 42 1988
 
BELL TELEPHONE LABORATORIES, INCORPORATED (3)
* 4900917 Polarization insensitive optical communication device utilizing optical preamplification 23 1988
* 4941738 Polarization independent optical amplifier apparatus 33 1988
* 4952017 Polarization independent semiconductor optical amplifier 19 1989
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2002/0101,650 Optical amplifier stage 2 2002
* 2008/0019,705 Methods of achieving optimal communications performance 1 2007
 
THE REGENTS OF THE UNIVERSITY OF MICHIGAN (6)
6985283 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity 5 1999
6335820 Multi-stage optical amplifier and broadband communication system 51 1999
6356384 Broadband amplifier and communication system 100 2000
6760509 SNR booster for WDM systems 2 2001
6580548 Broadband amplifier and communication system 5 2001
6693738 Broadband amplifier and communication system 4 2001
 
LUCENT TECHNOLOGIES INC. (1)
* 5822113 Optical amplifier using optical circulator and fiber amplifier 18 1996
 
BANDWIDWITH SOLUTIONS, INC. (1)
6374006 Chirped period gratings for raman amplification in circulator loop cavities 81 1999
 
SAMSUNG ELECTRONICS CO., LTD. (3)
* 7173757 Broad-band light source using a semiconductor optical amplifier 3 2004
* 7110168 Optical signal transmission apparatus including reflective gain-clamped semiconductor optical amplifier 11 2004
* 2005/0088,724 Optical signal transmission apparatus including reflective gain-clamped semiconductor optical amplifier 4 2004
 
PRINCETON LIGHTWAVE, INC. (1)
6175446 Polarization-independent semiconductor optical amplifier 14 1998
 
FUJITSU LIMITED (3)
* 7375878 Optical repeater 2 2003
* 2004/0101,313 Optical repeater 24 2003
7616377 Optical repeater 0 2008
 
XTERA COMMUNICATIONS, INC. (12)
6567430 Raman oscillator including an intracavity filter and amplifiers utilizing same 12 1999
6359725 Multi-stage optical amplifier and broadband communication system 77 1999
6370164 Broadband sagnac raman amplifiers and cascade lasers 46 2000
6631025 Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders 31 2001
6760148 Nonlinear polarization amplifiers in nonzero dispersion shifted fiber 25 2001
6600592 S+ band nonlinear polarization amplifiers 5 2001
6574037 All band amplifier 42 2001
6885498 Multi-stage optical amplifier and broadband communication system 26 2001
6833946 Optical amplification using polarization diversity pumping 10 2002
* 2003/0058,899 Optical amplification using polarization diversity pumping 3 2002
6714342 Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders 2 2003
6919986 Nonlinear polarization amplifiers in nonzero dispersion shifted fiber 1 2003
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (4)
* 6831779 Method and apparatus for stabilizing a high-gain, high-power single polarization EDFA 9 2001
7181097 Methods of achieving optimal communications performance 4 2002
* 2002/0141,694 Methods of achieving optimal communications performance 2 2002
8958666 Methods of achieving optimal communications performance 0 2007
 
INFINERA CORPORATION (2)
* 8452185 Polarization insensitive optical circuit 0 2007
8314988 Polarization insensitive optical circuit 0 2007
 
LUMENTUM SWITZERLAND AG (1)
* 6384966 Multiple pass optical amplifier with thermal birefringence compensation 17 1999
 
CHEMIMAGE TECHNOLOGIES LLC (1)
7848000 Birefringent spectral filter with wide field of view and associated communications method and apparatus 6 2007
 
RAYTHEON COMPANY (2)
* 6965472 Nonreciprocal optical element with independent control of transmission opposite directions 4 2004
* 2005/0207,009 NONRECIPROCAL OPTICAL ELEMENT WITH INDEPENDENT CONTROL OF TRANSMISSION OPPOSITE DIRECTIONS 1 2004
 
NP PHOTONICS, INC. (1)
* 6700697 Reflective erbium-doped amplifier 11 2002
* Cited By Examiner