Optical waveguides – Polarization without modulation
Patent
1993-03-15
1994-04-12
Lee, John D.
Optical waveguides
Polarization without modulation
385 27, 372 6, 359341, G02B 530
Patent
active
053033140
ABSTRACT:
A single-polarization fiber optical amplifier and corresponding method is provided capable of amplifying an optical input signal by a fiber optic amplifier constructed of fiber which may be non-polarization-maintaining. The single-polarization fiber optical amplifier provides a direction-selective coupler which receives an optical input at a first port and outputs an optical output at a second port. A fiber optic amplifier is operatively connected to the direction-selective coupler at a bidirectional port for amplifying the optical input. A retro-reflecting orthogonal polarization converter is operatively connected to the fiber optic amplifier, reflecting the amplified optical input from the fiber optic amplifier in a return direction through the fiber optic amplifier and in an orthogonal polarization to the amplified optical input. The direction-selective coupler outputs the reflected amplified orthogonal optical input at the second port as the optical output of the direction-selective coupler. Further configurations adapting the input and output ports to transmit the optical signal through cavity or other structures may be provided to produce, for example, an ultrashort pulse optical source; a single-wavelength, single-polarization, widely-tunable laser source; or an amplified spontaneous emission source.
REFERENCES:
patent: 4941738 (1990-07-01), Olsson
patent: 5042039 (1991-08-01), Edagawa et al.
patent: 5050183 (1991-09-01), Duling, III
patent: 5089786 (1992-02-01), Tamura
patent: 5134620 (1992-07-01), Huber
patent: 5138621 (1992-08-01), Goto et al.
patent: 5164954 (1992-11-01), Su
patent: 5198921 (1993-03-01), Aoshima et al.
Krasinski et al. "Multipass Amplifiers Using Optical Circulators", IEEE Jnal of Quantum Electronics, vol. 26, No. 5, May 1990, pp. 950-958.
Nishi et al., "High Efficient Configuration of Erbium-doped Fiber Amplifier", 16th European Conf. on Optical Communication, Sep. 16-20, 1990, Amsterdam, vol. 1, pp. 99-102.
Pistoni et al., "Polarization Noise Suppression in Retracting Optical Fiber Circuits", Optics Letters, vol. 16, No. 10, May 15, 1991, pp. 711-713.
Morioka et al., "Ultrafast Reflective Optical Kerr Demultiplexer Using Polarisation Rotation Mirror", Electronics Letters, vol. 28, No. 6, Mar. 12, 1992, pp. 521-522.
Duling, III Irl N.
Esman Ronald D.
Jameson George
Lee John D.
McDonnell Thomas E.
Sanghavi Hemang
The United States of America as represented by the Secretary of
LandOfFree
Method and apparatus for polarization-maintaining fiber optical does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for polarization-maintaining fiber optical , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for polarization-maintaining fiber optical will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2105780