Coherent light generators – Optical fiber laser
Patent
1996-07-29
1998-06-30
Bovernick, Rodney B.
Coherent light generators
Optical fiber laser
372102, H01S 307
Patent
active
057744840
ABSTRACT:
A high power monomode laser arrangement is able to manipulate the output from a high power laser diode array pump source using a computer-generated hologram to launch a high proportion of the pump source light into a multimode fibre portion including input reflector. A monomode fibre portion with the same fundamental-mode spot size as the multimode fibre portion is optically coupled to the multimode fibre portion and includes a reflector which reflects only the fundamental mode of the multimode and monomode fibre portions. The fundamental mode reflection forced by the monomode fibre portion provides the feedback necessary to force predominantly fundamental mode oscillation which enables stimulated emission in only the fundamental mode.
REFERENCES:
patent: 3808549 (1974-04-01), Maurer
patent: 5263036 (1993-11-01), De Bernardi et al.
patent: 5321718 (1994-06-01), Waarts et al.
patent: 5426656 (1995-06-01), Tohmon et al.
patent: 5436919 (1995-07-01), Chwalek et al.
Chernikov et al. "Coupled-Cavity Erbium Fiber Lasers Incorporating Fiber Grating Reflectors", Optics Letters, vol. 18, No. 23, 1 Dec. 1993, New York, pp. 2023-2025.
Ball et al, "Modeling of Short, Sigle-Frequency Fiber Lasers in High-Gain Fiber", IEEE Photonics Technology Letters, vol. 5, No. 6, 5 Jun. 1993, New ork, pp. 649-651.
Piehler, "Unconversion Process Creates Compact Blue/Green Lasers", Laser Focus World, vol. 19, No. 11, Nov. 1993, Tulsa, pp. 95-102.
Po, "High Power Neodymium-doped Single Transvere Mode Fibre Laser", Electronics Letters, vol. 29, No. 17, 19 Aug. 1993, Engage, GB, pp. 1500-1501.
Eisenstein et al, "High-Power Extended-Cavity Laser at 1.3 .mu.m with a Single-Mode Fiber Output Port", Applied Physics Letter 50(22), 1 Jun. 1987, pp. 1567-1568.
"Narrow Line Semiconductor Laser Using Fibre Grating", Electronics Letters, 20.sup.th Jun. 1991, vol. 27, No. 13, pp. 1115-1116. Bird et al.
Leger et al, "Geometrical Transformation of Linear Diode-Laser Arrays for Longitudinal Pumping of Solid-State Laser Arrays for Longitudinal Pumping of Solid-State Lasers", IEEE Journal of Quantum Electronics, Apr. 1992 7 pages.
Kogelnik et al, "Coupled Wave Theory of Distributed Feedback Lasers", J. Apply. Phys. vol, 43, No. 5, May 1972, pp. 2337-2334.
Allain et al, "Ytterbium-Doped Fluoride Fibre Laser Operating at 1.02 .mu.m", Electronics Letters, 21.sup.st May 1992, vol. 28, No. 11, pp. 988-989.
Brierley et al, "Visible fibre lasers", BT Technol. J, vol. 11, No. 2, Apr. 1993, 9 unnumbered pages.
Allain et al, "Red Upconversion Yb-Sensitised Pr Fluoride Fibre Laser Pumped in 0.8 .mu.m Region", Electronics Letters, 20.sup.th Jun. 1991, vol. 27, No. 13, pp. 1156-1157.
Smart et al, "CW Room Temperature Upconversion Lasing at Blue, Green and Red Wavelengths in Infrared-Pumped Pr.sup.3+ -Doped Fluoride Fibre", Electronics Letters, 4.sup.th Jul. 1991, vol. 27, No. 14, pp. 1307-1308.
Kashyap et al, "All-Fibre Narrowband Reflection Gratings at 1500 nm", Electronics Letters, 24.sup.th May 1990, vol. 26, No. 11, pp. 2 unnumbered pages.
Armitage Jonathan R.
Wyatt Richard
Bovernick Rodney B.
British Telecommunications PLC
Song Yisun
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