Coherent light generators – Particular beam control device – Modulation
Patent
1995-04-28
1998-03-31
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Modulation
372 6, 372106, H01S 310
Patent
active
057346674
ABSTRACT:
An optical device includes a polarization section having a port, the polarization section being for receiving light at the port and for outputting light at the port with a state of polarization orthoconjugate to the light received at the port. The polarization section includes a reflector, a bidirectional nonreciprocal rotator and a bidirectional polarizer. The bidirectional nonreciprocal rotator has first and second ends, the first end being operatively coupled to the port. The bidirectional polarizer has first and second ends, the first polarizer end being operatively coupled to the reflector and the second polarizer end being operatively coupled to the second rotator end. The optical device further includes an amplifying section having a port and a rotator-reflector, the amplifying section being for receiving light at the amplifying section port and for outputting light at the amplifying section port with a state of polarization orthoconjugate to the light received at the amplifying section port and being amplified with respect thereto. The optical device includes means for transmitting light in both directions between the polarization section port and the amplifying section port, and means responsive to light internal to the polarization section for outputting coherent light having a stable and known state of polarization.
REFERENCES:
patent: 4814524 (1989-03-01), Briody et al.
patent: 5303314 (1994-04-01), Duling, III et al.
patent: 5361268 (1994-11-01), Fossey et al.
patent: 5434501 (1995-07-01), Esman et al.
Duling III et al., "Single-Polarisation Fibre Amplifier", Electronics Ltrs, Jun. 1992, vol. 28, No. 12, pp. 1126-1127.
Giles, "Suppression of Polarisation Holeburning-Induced Gain Anisotropy In Reflective EDFAs" Electronics Ltrs, 9 Jun. 1994, vol. 30, No. 12, p. 976-977.
Esman et al., "Microwave True Time-Delay Modulator Using Fibre-Optic Dispersion", Electronics Ltrs, 24 Sep. 1992, vol. 28, No. 20, pp. 1905-1906.
Cowle et al., "Single-Frequency Travelling-Wave Erbium-Doped Fibre Loop Laser", Electronics Ltrs, 31 Jan. 1991, vol. 27, No. 3, pp. 229-230.
Schmuck et al., "Widely Tunable Narrow Linewidth Erbium Doped Fibre Ring Laser", Electronics Ltrs, 7 Nov. 1991, vol. 27, No. 23, pp. 2117-2119.
Iwatsuki et al., "Wavelength-Tunable Single-Frequency and Single-Polarisation Er Doped Fibre Ring-Laser With 1.4kHz Linewidth", Elec. Ltrs, 22 Nov. 1990, vol. 26, No. 24, pp. 2033-2035.
Cooper David G.
Dexter James L.
Duling, III Irl N.
Esman Ronald D.
Jr. Leon Scott
McDonnell Thomas E.
The United States of America as represented by the Secretary of
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