Broadband unpolarized light source

Details Broadband unpolarized light source Broadband unpolarized light source

1983-05-02

1985-12-03

Arnold, Bruce Y.

G02F 101

Patent

active

045562938

ABSTRACT:
Broadband, unpolarized light is produced by coupling a birefringent optical fiber to a light emitting device, such as a superluminescent diode, which is capable of emitting broadband, partially polarized light. The optical fiber is made sufficiently long to provide an optical differential path length between its birefringent axes which is longer than the coherence length of the light emitting device.

REFERENCES:
patent: 3404353 (1968-10-01), Harris et al.
patent: 3433553 (1969-03-01), Peters
patent: 3512868 (1970-05-01), Gorkiewicz et al.
Stone, J. M., Radiation and Optics, McGraw Hill, 1963, pp. 302-311.
Lu, et al., "Depolarization of White Light by a Birefringent Crystal", JO vol. 65, No. 3, Mar. 1975, pp. 248-251.
Maeda, et al., "Buried-Heterostructure Laser Packaging for Wideband Optical Transmission Systems", IEEE Transactions on Communications, vol. COM-26, No. 7, Jul. 1978, pp. 1076-1081.
Billings, "A Monochromatic Depolarizer", J. of the Optical Soc. of America, vol. 41, No. 11, pp. 966-975 (Dec. 1951).
Sakai et al., "Degree of Polarization in Anisotropic Single-Mode Optical Fibers: Theory", IEEE J. of Q. Elec., vol. QE-18, No. 4, (Apr. 1982).
Bohm et al., "Low-Drift Fibre Gyro Using a Superluminescent Diode", Electronics Letters, vol. 17, No. 10, (May 14, 1981).

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