US Patent No: 5,485,481

Number of patents in Portfolio can not be more than 2000

Fibre-grating-stabilized diode laser

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

A fibre Bragg grating is used to stabilize the intensity and frequency fluctuations of a diode laser. The diode laser is connected with an opto-mechanical apparatus to the fibre which contains the grating. The grating is formed in the guided-mode region of the optical fibre using photorefractive techniques. The wavelength of maximum grating reflectivity is selected to lie near the maximum of the diode laser gain bandwidth. The magnitude and bandwidth of the grating reflectivity is sufficient to stabilize the diode laser output without appreciably reducing the optical output power from the end of the fibre. The bandwidth of the optical spectrum of the diode laser is increased or decreased relative to the solitary diode laser operating characteristics depending on the distance of the grating from the diode laser.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
JDS UNIPHASE CORPORATIONSAN JOSE, CA1874

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rogers, Grant Victoria, CA 11 180
Ventrudo, Brian F Victoria, CA 13 355

Cited Art

Patent Info (Count) # Cites Year
 
AMP INCORPORATED (1)
4,786,132 Hybrid distributed bragg reflector laser 66 1987
 
FURUKAWA ELECTRIC NORTH AMERICA, INC. (1)
5,309,260 Method for forming distributed bragg reflectors in optical media 40 1992
 
JDS UNIPHASE CORPORATION (1)
5,185,752 Coupling arrangements for frequency-doubled diode lasers 61 1992
 
SDL, INC. (1)
5,321,718 Frequency converted laser diode and lens system therefor 91 1993

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
JDS UNIPHASE CORPORATION (23)
5,677,920 Upconversion fiber laser 49 1995
6,058,128 Apparatus for providing a stabilized laser source 22 1996
5,699,377 Narrow linewidth, stabilized semiconductor laser source 30 1996
5,799,029 Laser system with reduced power fluctuations for employment in applications requiring continuous stable light intensity delivery 7 1996
5,841,797 Apparatus for stabilizing multiple laser sources and their application 50 1996
5,920,423 Multiple pumped fiber amplifiers for WDM communication systems with adjustment for the amplifier signal gain bandwidth 80 1997
6,167,075 High power, reliable optical fiber pumping system with high redundancy for use in lightwave communication systems 29 1998
6,041,072 Apparatus for stabilizing multiple laser sources and their application 23 1998
5,930,280 Laser system with reduced power fluctuations for employment in applications requiring continuous stable light intensity delivery 10 1998
6,215,809 Stabilization of laser sources with closely-coupled optical reflectors using an internal dither circuit 26 1998
6,236,498 Upgradable, gain flattened fiber amplifiers for WDM applications 45 1999
6,525,872 Fiber grating-stabilized, semiconductor pump source 22 1999
6,407,855 Multiple wavelength optical sources 29 1999
6,240,119 Apparatus for providing a stabilized laser source 10 1999
6,611,544 Method and apparatus for narrow bandwidth distributed bragg reflector semiconductor lasers 12 2000
6,670,222 Texturing of a die pad surface for enhancing bonding strength in the surface attachment 19 2001
6,388,806 Upgradable, gain flattened fiber amplifiers for WDM applications 17 2001
6,661,819 Fiber grating stabilized diode laser 4 2001
6,792,008 Tracking error suppression and method of reducing tracking error 3 2001
6,748,137 Lensed optical fiber 5 2001
6,792,012 Laser pump module with reduced tracking error 2 2001
6,549,329 Multiple wavelength optical sources 13 2002
6,996,140 Laser device for nonlinear conversion of light 15 2003
 
XTERA COMMUNICATIONS, INC. (11)
6,567,430 Raman oscillator including an intracavity filter and amplifiers utilizing same 9 1999
6,359,725 Multi-stage optical amplifier and broadband communication system 72 1999
6,370,164 Broadband sagnac raman amplifiers and cascade lasers 46 2000
6,631,025 Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders 13 2001
6,760,148 Nonlinear polarization amplifiers in nonzero dispersion shifted fiber 9 2001
6,600,592 S+ band nonlinear polarization amplifiers 4 2001
6,574,037 All band amplifier 37 2001
6,885,498 Multi-stage optical amplifier and broadband communication system 10 2001
6,833,946 Optical amplification using polarization diversity pumping 6 2002
6,714,342 Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders 2 2003
6,919,986 Nonlinear polarization amplifiers in nonzero dispersion shifted fiber 1 2003
 
EMCORE CORPORATION (7)
7,199,446 Stacked electrical resistor pad for optical fiber attachment 10 2003
7,412,174 Method and apparatus for distortion control for optical transmitters 0 2004
7,466,925 Directly modulated laser optical transmission system 15 2005
7,848,661 Directly modulated laser optical transmission system with phase modulation 2 2006
7,881,621 Optical transmission system with directly modulated laser and feed forward noise cancellation 2 2007
7,792,432 Externally modulated laser optical transmission system with feed forward noise cancellation 1 2007
8,023,830 Externally modulated laser optical transmission system with feed forward noise cancellation 0 2010
 
THE REGENTS OF THE UNIVERSITY OF MICHIGAN (6)
6,985,283 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity 5 1999
6,335,820 Multi-stage optical amplifier and broadband communication system 51 1999
6,356,384 Broadband amplifier and communication system 93 2000
6,760,509 SNR booster for WDM systems 1 2001
6,580,548 Broadband amplifier and communication system 5 2001
6,693,738 Broadband amplifier and communication system 4 2001
 
SUMITOMO ELECTRIC INDUSTRIES, LTD. (4)
6,415,078 Laser light source and manufacturing method therefor 9 1996
5,845,030 Semiconductor laser module and optical fiber amplifier 35 1997
5,993,073 Semiconductor laser module 22 1998
6,273,620 Semiconductor light emitting module 10 1999
 
AVANEX CORPORATION (3)
6,952,437 Laser with wide operating temperature range 1 2000
6,680,793 Temperature-stabilized optical amplifier and method for temperature-stabilizing an optical amplifier 0 2001
7,095,554 Pumping method and unit for optical amplifiers 1 2003
 
COHERENT, INC. (3)
7,212,553 Wavelength stabilized diode-laser array 6 2004
7,251,259 Wavelength locked fiber-coupled diode-laser bar 0 2004
7,251,260 Wavelength-locked fiber-coupled diode-laser bar 0 2004
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (2)
6,724,799 Wavelength tunable laser light source 1 2002
7,068,886 Millimeter wave oscillator using fiber Bragg grating 2 2005
 
MITSUBISHI DENKI KABUSHIKI KAISHA (2)
6,563,983 Laser diode module 1 2001
6,920,158 Optical module 0 2002
 
MITSUBISHI ELECTRIC CORPORATION (2)
7,693,194 Fundamental-wave light source and wavelength converter 1 2004
7,605,973 Optical wavelength conversion light source 2 2004
 
THE FURUKAWA ELECTRIC CO., LTD. (2)
6,683,902 Semiconductor laser module 3 2000
7,649,921 Laser module 0 2004
 
ADC TELECOMMUNICATIONS, INC. (1)
6,778,583 Three-cavity stabilized laser system 2 2001
 
AGERE SYSTEMS INC. (1)
5,724,377 Method and apparatus for improving the instability of a laser 19 1996
 
AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD. (1)
5,940,557 Optical fibre microlens and optical radiation source employing the same 28 1997
 
AXYS GROUP LTD., THE (1)
5,710,786 Optical fibre laser pump source for fibre amplifiers 22 1995
 
BANDWIDWITH SOLUTIONS, INC. (1)
6,374,006 Chirped period gratings for raman amplification in circulator loop cavities 63 1999
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
5,832,011 Laser 12 1995
 
CIENA CORPORATION (1)
6,721,089 Method and apparatus for expanding the dynamic range of optical amplifiers 8 2001
 
CORNING INCORPORATED (1)
6,370,180 Semiconductor-solid state laser optical waveguide pump 8 1999
 
CORNING O.T.I., SPA (1)
6,643,058 Pumping method and unit for optical amplifiers 5 2001
 
FURUKAWA ELECTRIC NORTH AMERICA, INC. (1)
5,703,978 Temperature insensitive long-period fiber grating devices 48 1996
 
HONEYWELL INC. (1)
6,144,788 High stability fiber light source 12 1998
 
K2 OPTRONICS, INC. (1)
7,548,567 Analog transmitter using an external cavity laser (ECL) 3 2005
 
NEC CORPORATION (1)
6,698,941 Mode locking semiconductor laser system including external cavity 1 2001
 
NORTEL NETWORKS UK LIMITED (1)
6,771,687 Stabilized laser source 1 2002
 
OPTICAL TECHNOLOGIES ITALIA S.P.A. (1)
5,796,764 Rare-earth doped lithium niobate DBR laser 13 1996
 
PAVILION INTEGRATION CORPORATION (1)
7,606,273 Wavelength and intensity stabilized laser diode and application of same to pumping solid-state lasers 1 2007
 
SCIENTIFIC-ATLANTA, INC. (1)
6,125,222 Fiber grating feedback stabilization of broad area laser diode 10 1998
 
SHIMADZU CORPORATION (1)
7,620,079 Wavelength converter apparatus 0 2008
 
SUMITOMO ELECTRIC DEVICE INNOVATIONS, U.S.A., INC. (1)
7,575,380 Integrated optical fiber and electro-optical converter 2 2004
 
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (1)
6,188,705 Fiber grating coupled light source capable of tunable, single frequency operation 37 1998
 
THE UNIVERSITY OF SYDNEY (1)
6,788,713 Reduction of pulsations in DFB lasers 2 2001
 
TYCO TELECOMMUNICATIONS (US) INC. (1)
6,381,065 Optical pump unit for an optical amplifier 5 1999
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
6,212,216 External cavity micro laser apparatus 27 1996