Coherent light generators – Particular beam control device – Having particular beam control circuit component
Patent
1995-05-12
1996-11-12
Bovernick, Rodney B.
Coherent light generators
Particular beam control device
Having particular beam control circuit component
372 6, 372 18, 372106, H01S 313
Patent
active
055747396
ABSTRACT:
A pulsed laser includes a polarization section having a port, the polarization section being for receiving light at the port in a selected state of polarization and for outputting light at the port having a state of polarization orthogonal to the selected state of polarization. The laser also includes an amplifying section having a port, a bidirectional amplifier, 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 amplified with respect thereto, the bidirectional amplifier being operatively coupled to the amplifying section port at a first end and operatively coupled to the rotator-reflector at a second end. The pulsed laser further includes means for transmitting light in both directions between the polarization section port and the amplifying section port, an amplitude modulator responsive to a modulation signal for actively mode-locking light internal to the pulsed laser, and means responsive to light internal to the polarization section for outputting coherent light.
REFERENCES:
patent: 5050183 (1991-09-01), Duling, III
patent: 5359612 (1994-10-01), Dennis et al.
patent: 5440573 (1995-08-01), Fermann
patent: 5448579 (1995-09-01), Chang et al.
I. N. Duling III, "Subpicosecond All-Fibre Erbium Laser," Electron. Lett., ar. 1991, 27, pp. 544-545.
I. N. Duling III and R. D. Esman, "Single-polarization Fiber Amplifier," Electron, Lett., Jun. 1992, 28, pp. 1126-1127.
M. E. Fermann et al., "Passive Mode Locking by Using Nonlinear Polarization Evolution in a Polizaration Maintaining Erbium-Doped Fiber," Opt. Lett., Jun. 1993, 18, pp. 894-896.
L. M. Yang et al., "Environmentally Stable Kerr-Type Mode-Locked Erbium Laser Producing 360-fs Pulses," Opt. Lett., Jan. 1994, 19, pp. 43-45.
Thomas Carruthers, et al, "Active-Passive mode Locking in a Single-Polarization Erbium Fiber Laser" Electron, Lett., Jun. 1994.
Carruthers Thomas F.
Dennis Michael L.
Duling, III Irl N.
Bovernick Rodney B.
Kalish Daniel
McDonnell Thomas E.
The United States of America as represented by the Secretary of
Wise Robert E.
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