Coherent light generators – Particular resonant cavity – Specified cavity component
Reexamination Certificate
2009-01-13
2010-12-07
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular resonant cavity
Specified cavity component
C372S020000, C372S098000
Reexamination Certificate
active
07848382
ABSTRACT:
A laser source (10) for emitting a set of sequential, different wavelength output beams (12) includes a gain medium (16), a feedback assembly (26) and a control system (30). The gain medium (16) includes a first facet (16A), and the gain medium (16) generates a beam (12A) that exits the first facet (16A). The feedback assembly (26) includes a feedback device (40) and a device mover (42). The feedback device (40) is positioned in the path of the beam (12A) that exits the first facet (16A) and the feedback device (40) redirects at least a portion of the beam (12A) back to the gain medium (16). The device mover (42) continuously adjusts an angle of incidence (θ) of the beam (12A) on the feedback device (40). The control system (30) selectively directs pulses of power to the gain medium (16) as the device mover (42) is continuously adjusting the angle of incidence (θ) of the beam (12A). Further, the laser source (10) can include a position detector (28) that generates a position signal that relates to the angle of incidence (θ) of the beam (12A) on the feedback device (40). In this embodiment, the control system (30) can selectively direct pulses of power to the gain medium (16) based on the position signal from the position detector (28). Further, the control system (30) can determine a center wavelength of the output beam (12) based on the position signal.
REFERENCES:
patent: 4555627 (1985-11-01), McRae, Jr.
patent: 4745276 (1988-05-01), Broicher et al.
patent: 4772789 (1988-09-01), Maram et al.
patent: 4796266 (1989-01-01), Banwell et al.
patent: 4852956 (1989-08-01), Kramer
patent: 4871916 (1989-10-01), Scott
patent: 5082799 (1992-01-01), Holmstrom et al.
patent: 5161408 (1992-11-01), McRae et al.
patent: 5172390 (1992-12-01), Mooradian
patent: 5181214 (1993-01-01), Berger et al.
patent: 5225679 (1993-07-01), Clarke et al.
patent: 5255073 (1993-10-01), Wallin et al.
patent: 5264368 (1993-11-01), Clarke et al.
patent: 5315436 (1994-05-01), Lowenhar et al.
patent: 5430293 (1995-07-01), Sato et al.
patent: 5491714 (1996-02-01), Kitamura
patent: 5523569 (1996-06-01), Hornfeld et al.
patent: 5656813 (1997-08-01), Moore et al.
patent: 5751830 (1998-05-01), Hutchinson
patent: 5780724 (1998-07-01), Olender et al.
patent: 5824884 (1998-10-01), Olender et al.
patent: 5834632 (1998-11-01), Olender et al.
patent: 5854422 (1998-12-01), McKeon et al.
patent: 5862162 (1999-01-01), Maeda
patent: 5866073 (1999-02-01), Sausa et al.
patent: 6089076 (2000-07-01), Mueller et al.
patent: 6134257 (2000-10-01), Capasso et al.
patent: 6154307 (2000-11-01), Veronesi et al.
patent: 6157033 (2000-12-01), Chudnovsky
patent: 6326646 (2001-12-01), Baillargeon et al.
patent: 6327896 (2001-12-01), Veronesi et al.
patent: 6400744 (2002-06-01), Capasso et al.
patent: 6470036 (2002-10-01), Bailey et al.
patent: 6553045 (2003-04-01), Kaspi
patent: 6575641 (2003-06-01), Yamabayashi et al.
patent: 6608847 (2003-08-01), Zhang et al.
patent: 6636539 (2003-10-01), Martinsen
patent: 6690472 (2004-02-01), Kulp et al.
patent: 6803577 (2004-10-01), Edner et al.
patent: 6859481 (2005-02-01), Zheng
patent: 6866089 (2005-03-01), Avila
patent: 6885965 (2005-04-01), Butler et al.
patent: 6995846 (2006-02-01), Kalayeh et al.
patent: 7032431 (2006-04-01), Baum et al.
patent: 7061022 (2006-06-01), Pham et al.
patent: 7088076 (2006-08-01), Densham et al.
patent: 7151787 (2006-12-01), Kulp et al.
patent: 7189970 (2007-03-01), Racca et al.
patent: 7353656 (2008-04-01), Day et al.
patent: 7424042 (2008-09-01), Day et al.
patent: 7466734 (2008-12-01), Day et al.
patent: 7492806 (2009-02-01), Day et al.
patent: 7535936 (2009-05-01), Day et al.
patent: 7733925 (2010-06-01), Pushkarsky et al.
patent: 2002/0024979 (2002-02-01), Vilhelmsson et al.
patent: 2002/0064198 (2002-05-01), Koizumi
patent: 2002/0176473 (2002-11-01), Mouradian
patent: 2003/0043877 (2003-03-01), Kaspi
patent: 2003/0063633 (2003-04-01), Zhang et al.
patent: 2003/0123495 (2003-07-01), Cox
patent: 2003/0179789 (2003-09-01), Pilgrim et al.
patent: 2004/0013154 (2004-01-01), Zheng
patent: 2004/0095579 (2004-05-01), Bisson et al.
patent: 2004/0165640 (2004-08-01), Clifford et al.
patent: 2004/0208602 (2004-10-01), Plante
patent: 2004/0228371 (2004-11-01), Kolodzey et al.
patent: 2004/0238811 (2004-12-01), Nakamura et al.
patent: 2004/0264523 (2004-12-01), Posamentier
patent: 2005/0105566 (2005-05-01), Sacher
patent: 2005/0213627 (2005-09-01), Masselink et al.
patent: 2006/0056466 (2006-03-01), Belenky et al.
patent: 2006/0262316 (2006-11-01), Baney
patent: 2007/0019702 (2007-01-01), Day et al.
patent: 2007/0030865 (2007-02-01), Day et al.
patent: 2007/0047599 (2007-03-01), Wysocki et al.
patent: 2007/0291804 (2007-12-01), Day et al.
patent: 2008/0231719 (2008-09-01), Benson et al.
patent: 2008/0298406 (2008-12-01), Day et al.
patent: 2008/0304524 (2008-12-01), Marsland et al.
patent: 10205310 (2003-09-01), None
patent: 0877 454 (1998-11-01), None
patent: 0 883 220 (1998-12-01), None
patent: 2 081 265 (2009-09-01), None
patent: 03-048480 (1991-03-01), None
patent: 07-024322 (1995-01-01), None
patent: 2005317819 (2005-11-01), None
patent: WO9220127 (1992-11-01), None
patent: WO 03/067720 (2003-08-01), None
patent: WO2008036881 (2008-03-01), None
patent: WO2008036884 (2008-03-01), None
US 7,733,928, 06/2010, Marsland et al. (withdrawn)
Haim Lotem, Mode-hop suppression of Littrow grating-tuned lasers: comment, 20 Month 1994, p. 1, vol. 33, No. 00, Applied Optics.
Patrick McNicholl and Harold J. Metcalf, Synchronous cavity mode and feedback wavelength scanning in dye laser oscillators with gratings, Sep. 1, 1985, pp. 2757-2761, vol. 24, No. 17, Applied Optics, © 1985 Optical Society of America.
M. De Labachelerie and G. Passedat, Mode-hop suppression of Littrow grating-tuned lasers, Jan. 20, 1993, pp. 269-272vol. 32, No. 3, Applied Optics, © 1993 Optical Society of America.
S. Blaser et al., Alpes Lasers, Room-temperature continuous-wave single-mode quantum cascade lasers, Photonics West 2006, Novel In-Plane Semiconductors V:Quantum Cascade Lasers:6133-01 Switzerland.
Gaetano Scamarcio, Mid-IR and THz Quantum Cascade Lasers, 2005, Physics Dept, University of Bad, Bari Italy.
Gaetano Scamarcio et al., Micro-probe characterization of QCLs correlation with optical performance, APL 78, 1177 & APL 78, 2095 (2001), APL 2002, APL 2004, University of Bari, Bari Italy.
J. Faist, THz and Mid-IR Quantum cascade lasers, QM in space, Chatillon, Mar. 31, Science 2002, University of Neuchatel, EU Projects Answer/Teranova; Agilent, Funding Swiss National Science Foundation.
Joel M. Hensley, Recent Updates in QCL-based Sensing Applications, Sep. 5-10, 2006, Physical Sciences, Inc., Andover, MA, 2nd International Workshop on Quantum Cascade Lasers, Ostuni, Italy.
J.M. Hensley et al., Demonstration of an External Cavity Terahertz Quantum Cascade Laser, Copyright 2005, Optical Society of America, Washington, DC 20036.
L. Hildebrandt et al., Quantum cascade external cavity and DFB laser systems in the mid-infrared spectral range: devices and applications, 2004, Marburg Germany.
Richard Maulini et al., Broadly tunable external cavity quantum-cascade lasers, 2005, University of Neuchatel, Neuchatel Switzerland.
Tsekoun, A. et al; “Improved performance of QCL's through a scalable, manufacturable epitaxial-side-down mounting process”; Feb. 2006.
Pushkarsky, M. et al.; “Sub-parts-per-billion level detection of NO2 using room temp. QCLs”; May 2006.
Wirtz, D. et al.; “A tuneable heterodyne infrared spectrometer”; Physikalisches Institut; University of Koln; Koln Germany Spectrochimica 2002.
Williams, B. et al.;“Terahertz QCLs and Electronics”; PhD-MIT 2003.
Hidebrandt, L.et al., “Quantum cascade external cavity laser systems in the mid-infrared spectral range,” 2004, Sachere Lasertechnik Group, Marburg, Germany.
Corrie David Farmer, “Fab and Eval. of QCL's ”, Sep. 2000, Faculty of Engineering, University of Glasgow, Glasgow, UK.
Partial European Search Report for European Application No. 0
Arnone David F.
Pritchett Russ
Weida Miles James
Daylight Solutions, Inc.
Harvey Minsun
Nguyen Phillip
Roeder & Broder LLP
LandOfFree
Laser source that generates a plurality of alternative... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser source that generates a plurality of alternative..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser source that generates a plurality of alternative... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4189437