Wavelength selective optical devices

Optical waveguides – With optical coupler – Input/output coupler

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385 24, G02B 634

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058752722

ABSTRACT:
Wavelength selective devices and subsystems having various applications in the field of optical communications are disclosed. These devices and subsystems are composed of bi-directional grating assisted mode couplers. The high add/drop efficiency and low loss of this coupler enable low loss wavelength selective elements such as optical switches, amplifiers, routers, and sources to be fabricated. The grating assisted mode coupler can be wavelength tuned by modifying the optical properties of the coupler interaction region. A programmable, wavelength selective router composed of multiple grating assisted mode couplers is also disclosed.

REFERENCES:
patent: 4474427 (1984-10-01), Hill et al.
patent: 4725110 (1988-02-01), Glenn et al.
patent: 4737007 (1988-04-01), Alferness et al.
patent: 4737607 (1988-04-01), Bernard et al.
patent: 4807950 (1989-02-01), Glenn et al.
patent: 4900119 (1990-02-01), Hill et al.
patent: 5007705 (1991-04-01), Morey et al.
patent: 5016967 (1991-05-01), Meltz et al.
patent: 5104209 (1992-04-01), Hill et al.
patent: 5107360 (1992-04-01), Huber
patent: 5157747 (1992-10-01), Atkins et al.
patent: 5187760 (1993-02-01), Huber
patent: 5216739 (1993-06-01), Hill et al.
patent: 5218655 (1993-06-01), Mizrahi
patent: 5235659 (1993-08-01), Atkins et al.
patent: 5271024 (1993-12-01), Huber
patent: 5287427 (1994-02-01), Atkins et al.
patent: 5309260 (1994-05-01), Mizrahi et al.
patent: 5327515 (1994-07-01), Anderson et al.
patent: 5337382 (1994-08-01), Mizrahi
patent: 5351321 (1994-09-01), Snitzer et al.
patent: 5363239 (1994-11-01), Mizrahi et al.
patent: 5367588 (1994-11-01), Hill et al.
patent: 5377288 (1994-12-01), Kashyap et al.
patent: 5400166 (1995-03-01), Huber
patent: 5416866 (1995-05-01), Sahlen
patent: 5420948 (1995-05-01), Byron
patent: 5425116 (1995-06-01), Dragone et al.
patent: 5444803 (1995-08-01), Kim et al.
patent: 5450511 (1995-09-01), Dragone
patent: 5457758 (1995-10-01), Snitzer
patent: 5459801 (1995-10-01), Snitzer
patent: 5495548 (1996-02-01), Bilodeau et al.
patent: 5506925 (1996-04-01), Greene et al.
patent: 5517589 (1996-05-01), Takeuchi
patent: 5574807 (1996-11-01), Snitzer
patent: 5581642 (1996-12-01), Beacon et al.
"All-Fibre Narrowband Reflection Gratings at 1500 nm", Elect. Letters, vol. 26, No. 11, May 24, 1990, pp. 730-732, R. Kashyap et al.
C.M. Ragdale, et al., "Integrated Three Channel Laser and Optical Multiplexer for Narrowband Wavelength Division Multiplexing", Elect. Ltrs., vol. 30, No. 11, May 26, 1994, pp. 897-898.
P.E. Dyer, et al., "High Reflectivity Fibre Gratings Produced by Incubated Damage Using a 193 nm ArF Laser", Elect. Ltrs., Vo. 30, No. 11, May 26, 1994, pp. 860-862.
V. Mizrahi, et al., "Four Channel Fibre Grating Demultiplexer", Elect. Ltrs., vol. 30, No. 10, May 12, 1994, pp. 780-781.
B. Malo et al., "Point-by-Point Fabrication of Micro-Bragg Gratings in Photosensitive Fibre Using Single Excimer Pulse Refractive Index Modification Techniques", Elect. Ltrs., vol. 29, No. 18, Sep. 2, 1993, pp. 1668-1669.
Fran.cedilla.ois Ouellette, et al., "Enhancement of Second-Harmonic Generation in Optical Fibers by A Hydrogen and Heat Treatment", Appl. Phys. Lett. 54(12), Mar. 20, 1989, pp. 1086-1088.
P.J. Lemaire, et al., "High Pressure H.sub.2 Loading as A Technique for Achieving Ultrahigh UV Photosensitivity and Thermal Sensitivity in GeO.sub.2 Dodped Optical Fibers", IEE 1993, Apr. 23, 1993, pp. 1191-1193.
R.M. Atkins, et al., "Mechanisms of Enhanced UV Photosensitivity Via Hydrogen Loading in Germanosilicate Glasses", IEE 1993, May 11, 1993, 2 pp.
B. Malo, et al., "Effective Index Drift From Molecular Hydrogen Diffusion in Hydrogen-Loaded Optical Fibres and Its Effect on Bragg Grating Fabrication", Elect. Ltrs., vol. 30, No. 5, Mar. 3, 1994, pp. 442-443.
G.D. Maxwell, et al., "UV Written 13 dB Reflection Filters in Hydrogenated Low Loss Planar Silica Waveguides", No Journal Name/Date.
"Efficient Mode Conversion in Telecommunication Fibre Using Externally Written Gratings", Elect. Ltrs. vol. 26, No. 16, Aug. 1990, pp. 1270-1272.
O. Okamoto, et al., "16-Channel Optical Add/Drop Multiplexer Using Silica-Based Arrayed-Waveguide Gratings", IEE 1995, Mar. 1995, 2 pp.
Y. Tachikawa, et al., "32 Wavelength Tunable Arrayed-Waveguide Grating Laser Based on Special Input/Output Arrangement", Elect. Ltrs., vol. 31, No. 19, Sep. 1995, pp. 1665-1666.
L. Dong, et al., "Ultraviolet Absorption in Modified Chemical Vapor Deposition Preforms", J. Opt. Soc. Am. B/Vol. 11, No. 10, Oct. 1994, pp. 2106-2111.
D.L. Williams, et al., "Accelerated Lifetime Tests on UV Written IntraCore Gratings in Boron Germania Codoped Silica Fibre", Elect. Ltrs., vol. 31, No. 24, Nov. 1995, pp. 2120-2121.
M.S. Yataki, et al., "All-Fibre Wavelength Filters Using Concatenated Fused-Taper Couplers", Elect. Ltrs., vol. 21, No. 6, Mar. 1985, pp. 248-249.
M.C. Farries, et al., "Very Broad Reflection Bandwidth (44 nm) Chirped Fibre Gratings and Narrow Bandpass Filters Produced by the Use of an Amplitude Mask", Elect. Ltrs., vol. 30, No. 11, May 1994, pp. 891-892.
Victor Mizrahi, et al., "Optical Properties of Photosensitive Fiber Phase Gratings", J. of Lightwave Tech., vol. 11, No. 10, Oct. 93, pp. 1513-1517.
Jocelyn Lauzon, et al., "Numerical Analysis of the Optimal Length and Profile of a Linearly Chirped Fiber Bragg Grating for Dispersion Compensation", Optics Ltrs., vol. 20, No. 6, Mar. 1995, pp. 647-649.
Fran.cedilla.ois Ouellette, "All-Fiber Filter for Efficient Dispersion Compensation", Optics Ltrs., vol. 16, No. 5, Mar. 1991, pp. 303-305.
F. Ouelette, et al., "Broadband and WDM Dispersion Compensation Using Chirped Sampled Fibre Bragg Gratings", Elect. Ltrs., vol. 31, No. 11, May 1995, pp. 899-901.
Philip St. J. Russell, et al., "Fibre Gratings", Physics World, Oct. 1993, 6 pp.
D.L. Williams, et al., "Enhanced UV Photosensitivity in BoronCodoped Germanosilicate Fibres", Elect. Ltrs., vol. 29, No. 1, Jan. 1993, pp. 45-47.
R. Kashyap, et al., "Measurement of Ultra-Steep Edge, High Rejection Fibre Bragg Grating Filters", Elect. Ltrs., vol. 31, No. 15, pp. 1282-1283, Jul. 1995.
Vikram Bhatia et al, "Optical Fiber Long-Period Grating Sensors" Optics Ltrs., vol. 21, No. 9, May 1996, pp. 692-694.
Richard L. Laming, et al., "Fibre Bragg Gratings; Application to Lasers and Amplifiers", Optoelect. Res. Ctr, 31 pp. no date.
L. Dong, et al., "Single Pulse Bragg Gratings Written During Fibre Drawings", Elect. Ltrs., vol. 29, No. 17, Aug. 1993, pp. 1577-1578.
J.L. Archambaualt, et al., "High Reflectivity and Narrow Bandwidth Fibre Gratings Written by Single Excimer Pulse", 2 pp., *no Journal name/date.
F. Bilodeau, et al., "An All-Fiber Dense-Wavelength-Division Multiplexer/Demultiplexer Using Photoimprinted Bragg Gratings", IEEE Photo. Tech. Ltrs., vol. 7, No. 4, Apr. 1995, pp. 388-390.
F. Bilodeau, et al., "Photosensitization of Optical Fiber and Silica-on-Silicon/Silica Waveguides", Optics Ltrs., vol. 18, No. 12, Jun. 1993, pp. 953-955.
paul J. Lemaire, "Reliability of Optical Fibers Exposed to Hydrogen: Prediction of Long-Term Loss Increases", Optic. Eng., vol. 30, No. 6, Jun. 1991, pp. 780-789.
James F.f. Shackelford, et al., "Solubility of Gases in Glass. II. He, Ne, and H.sub.2 in Fused Silica", J. Appl. Phys., vol. 43, No. 4, Apr. 1972, pp. 1619-1626.
L. Dong, et al., "Enhanced Photosensitivity in Tin-Codoped Germanosilicate Optical Fibers", IEEE Photo. Tech. Ltrs., vol. 7, No. 9, Sep. 1995, pp. 1048-1050.
K.O. Hill, et al., "Photosensitivity in Optical Fibers", Ann. Rev. Mater Sci. 1993, 125-157. (No month).
K.P. Jones, et al., "Optical Wavelength Add-Drop Multiplexer in Installed Submarine WDM Network", Elect. Ltrs., vol. 31, No. 24, Nov. 1995, pp. 2117-2118.
T.A. Birks, et al., "2.times.2 Single-Mode Fiber Routing Switch", Optics Ltrs., vol. 21, No. 10, May 1996, pp. 722-724.
T.A. Birks, et al., "Low Power Acousto-Optic Device Based on a Tapered Single-Mode Fiber", IEEE Photo. Tech. Ltrs., vol. 6, No. 6, Jun. 1994, pp. 725-727.
D.O. Culverhouse, et al., "Four Port Fused Taper Acousto-Optic Devices Using Standard Singlemode Telecommunications Fibre", Elect. Ltrs., vol

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