Optical transmitter

Details Optical transmitter Optical transmitter

2006-08-09

2009-02-10

Hughes, James P (Department: 2883)

Optical waveguides

Integrated optical circuit

C398S091000, C372S026000, C372S032000, C372S050100

Reexamination Certificate

active

07489838

ABSTRACT:
An optical transmitter comprises an array of modulated sources having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different wavelengths. Signal outputs of the modulated sources are optically coupled to inputs of the wavelength selective combiner to produce a combined signal output from the combiner. The wavelength selective combiner has a wavelength grid passband response approximating the wavelength grid of the standardized wavelength grid. A first wavelength tuning element is coupled to each of the modulated sources and a second wavelength tuning element is coupled to the wavelength selective combiner. A wavelength monitoring unit is coupled to receive a sampled portion the combined signal output from the wavelength selective combiner. A wavelength control system is coupled to the first and second wavelength tuning elements and to the wavelength monitoring unit to receive the sampled portion of the combined signal output. The wavelength control system adjusts the respective wavelengths of operation of the modulated sources to approximate the standardized wavelength grid and for adjusting the optical combiner wavelength grid passband response to approximate the standardized wavelength grid.

REFERENCES:
patent: 4835782 (1989-05-01), Kaede et al.
patent: 5341391 (1994-08-01), Ishimura
patent: 5383208 (1995-01-01), Queniat et al.
patent: 5394489 (1995-02-01), Koch
patent: 5418183 (1995-05-01), Joyner et al.
patent: 5450431 (1995-09-01), Glance et al.
patent: 5530580 (1996-06-01), Thompson et al.
patent: 5536085 (1996-07-01), Li et al.
patent: 5550666 (1996-08-01), Zirngibl
patent: 5600742 (1997-02-01), Zirngibl
patent: 5612968 (1997-03-01), Zah
patent: 5617234 (1997-04-01), Koga et al.
patent: 5631768 (1997-05-01), Bruno
patent: 5663823 (1997-09-01), Suzuki
patent: 5663824 (1997-09-01), Koch et al.
patent: 5745270 (1998-04-01), Koch
patent: 5745613 (1998-04-01), Fukuchi et al.
patent: 5784183 (1998-07-01), Aoki et al.
patent: 5805755 (1998-09-01), Amersfoort et al.
patent: 5825792 (1998-10-01), Villeneuve et al.
patent: 5870512 (1999-02-01), Koch et al.
patent: 5875273 (1999-02-01), Mizrahi et al.
patent: 5889906 (1999-03-01), Chen
patent: 5891748 (1999-04-01), Sakata
patent: 5894362 (1999-04-01), Onaka et al.
patent: 5913000 (1999-06-01), Doerr et al.
patent: 5917625 (1999-06-01), Ogusu et al.
patent: 5946331 (1999-08-01), Amersfoort et al.
patent: 5949562 (1999-09-01), Kubota et al.
patent: 5949566 (1999-09-01), Takano
patent: 5960014 (1999-09-01), Li et al.
patent: 5960141 (1999-09-01), Sasaki et al.
patent: 5963686 (1999-10-01), Zheng et al.
patent: 5987050 (1999-11-01), Doerr et al.
patent: 6005995 (1999-12-01), Chen et al.
patent: 6055078 (2000-04-01), Chen et al.
patent: 6061158 (2000-05-01), DeLong
patent: 6104516 (2000-08-01), Majima
patent: 6115403 (2000-09-01), Brenner et al.
patent: 6118562 (2000-09-01), Lee et al.
patent: 6120190 (2000-09-01), Leard et al.
patent: 6141477 (2000-10-01), Kitamura
patent: 6154474 (2000-11-01), Yoshida
patent: 6172782 (2001-01-01), Kobayashi
patent: 6188499 (2001-02-01), Majima
patent: 6233262 (2001-05-01), Mesh et al.
patent: 6236771 (2001-05-01), Aoki et al.
patent: 6240109 (2001-05-01), Shieh
patent: 6261857 (2001-07-01), Alam et al.
patent: 6271947 (2001-08-01), Iannone et al.
patent: 6275317 (2001-08-01), Doerr et al.
patent: 6278170 (2001-08-01), Komatsu
patent: 6282361 (2001-08-01), Nishimura et al.
patent: 6291813 (2001-09-01), Ackerman et al.
patent: 6301031 (2001-10-01), Li
patent: 6323987 (2001-11-01), Rinaudo et al.
patent: 6369923 (2002-04-01), Kuo et al.
patent: 6424439 (2002-07-01), King
patent: 6501773 (2002-12-01), Volz et al.
patent: 6542268 (2003-04-01), Rotolo et al.
patent: 6661974 (2003-12-01), Akiyama et al.
patent: 6697411 (2004-02-01), Hoose et al.
patent: 6700517 (2004-03-01), Kellar
patent: 7079719 (2006-07-01), Kish, Jr. et al.
patent: 7079721 (2006-07-01), Kish, Jr. et al.
patent: 7103239 (2006-09-01), Kish, Jr. et al.
patent: 2001/0005438 (2001-06-01), Menezo
patent: 2001/0019562 (2001-09-01), Kai et al.
patent: 2001/0021207 (2001-09-01), Serizawa
patent: 2002/0075549 (2002-06-01), Ash et al.
patent: 2002/0126386 (2002-09-01), Jordan et al.
patent: 2002/0146191 (2002-10-01), Bloemer et al.
patent: 2003/0016413 (2003-01-01), Carrick et al.
patent: 2007/0019901 (2007-01-01), Kish, Jr. et al.
patent: 2007/0172169 (2007-07-01), Kish, Jr. et al.
patent: 1047969 (2000-11-01), None
patent: WO 00/52789 (2000-09-01), None
patent: WO-01/16642 (2001-03-01), None
patent: WO 01/17076 (2001-03-01), None
patent: WO 01/18919 (2001-03-01), None
patent: WO 01/24328 (2001-04-01), None
Thomas L. Koch et al., “Semiconductor Photonic Integrated Circuits”,IEEE Journal of Quantum Electronics, vol. 27(3), pp. 641-653, Mar. 1991.
S. Sakano, et al., “Tunable DFB Laser with a Striped Thin-Film Heater”,IEEE Photonics Technology Letters, vol. 4, No. 4, pp. 321-323, Apr. 1992.
M. G. Young, “A 16 × 1 Wavelength Division Multiplexer with Integrated Distributed Bragg Reflector Lasers and Electroabsorption Modulators”,IEEE Photonics Technology Letters, vol. 5, No. 8, pp. 908-910, Aug. 1993.
T. Coroy, et al., “Active Wavelength Measurement System Using an InGaAs-InP Quantum-Well Electroabsorption Filtering Detector”,IEEE Photonics Tecnology Letters, vol. 8, No. 12, pp. 1686-1688, Dec. 1996.
H. Lee, et al., “Multichannel Wavelength Locking Using Transmission Peaks of an AWG for Multichannel Optical Transmission Systems”,IEEE Photonics Technology Letters, vol. 10, No. 2, pp. 276-278, Feb 1998.
K. J. Park, et al., “Simple Monitoring Technique for WDM Networks”,Electronic Letters, vol. 35(5), pp. 415-417, Mar. 1999.
C. H. Joyner, et al., “Low-Threshold Nine-Channel Waveguide Grating Router-Based Continuous Wave Transmitter”,Journal of Lightwave Technology, vol. 17, No. 4, pp. 647-651, Apr. 1999.
S. Menezo, et al., “10-Wavelength 200-GHz Channel Spacing Emitter Integrating DBR Lasers with a PHASAR on InP for WDM Applications”,IEEE Photonics Technology Letters, vol. 11, No. 7, pp. 785-787, Jul. 1999.
M. Bouda, “Compact High-Power Wavelength Selectable lasers for WDM Applications”,Conference on Optical Fiber Communication, Technical Digest series, vol. 1, pp. 178-180, Mar. 7-10, 2000.
K. J. Park, et al., “A Multi-Wavelength Locker for WMD System”,Conference on Optical Fiber Communication(OFC 2000), pp. WE 4-1 to WE 4-3, Wednesday, Mar. 8, 2000.
B. Pezeshki, et al., “12nm Tunable WDM Source Using an Integrated Laser Array”,Electronics Letters, vol. 36, No. 9, pp. 788-789, Apr. 27, 2000.
D. Alfano, “System-on-Chip Technology Adds Options for Laser Driver Control”,WDM Solutions, pp. 43-48, Nov. 2001.
Rajiv Ramaswami and Kumar N. Sivarajan, “Optical Networks”, Second Edition, Morgan Kaufmann Publishers, pp. 24-26 and 217-218, 2002.
Beck Mason, et al., “40-Gb/s Tandem Electroabsorption Modulator”,IEEE Photonics Technology Letters, vol. 14, No. 1, pp. 27-29, Jan. 2002.
Y. Yokoyama et al., “Multi-Wavelength Locker Integrated Wide-Band Wavelength Selectable Light Source Module”, NEC Research & Development, Paper 13, pp. 158-161, Feb. 2002.
K. Inoue et al., “Signal Improvement Effect in O/E-E/O Conversion Using an Electro-Absorption (EA) Modulator”,IEEE Photonics Technology Letters, vol. 9(1), pp. 109-111, Jan. 1997.
M. Zingibl, et al., “Polarization Independent 8 × 8 Waveguide Grating Multiplexer on InP”,Electronics Letters, vol. 29(2), pp. 201-202, Jan. 21, 1993.
M.A. Newkirk, et al., “1.5 μm Multiquantum-Well Semiconductor Optical Amplifier with tensile and compressively Strained Wells for Polarization-independent gain”,IEEE Photonics Technology Letters, vol. 4(4), pp. 406-408, Apr. 1993.
P. Doussiere, et al., “1.55 μm Polarization Independent Semiconductor Optical Amplifier with 25 dB Fiber to Fiber Gain

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