Variable spectral width multiple pass optical noise source

Details Variable spectral width multiple pass optical noise source Variable spectral width multiple pass optical noise source

1992-03-30

1993-12-21

Lerner, Martin

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359281, 359337, 359341, 359484, 372 27, 372 29, 372703, H01S 310, H01S 330, G02B 2728

Patent

active

052725600

ABSTRACT:
An apparatus for creating an optical noise of a predetermined bandwidth that uses an optical amplifier which amplifies optical noise components and produces unpolarized optical noise by spontaneous emission, a mirror to reflect the optical noise components back to the optical amplifier and a filter that filters out optical noise components outside the predetermined optical bandwidth. The filter is located so that optical noise components passed by the filter are amplified in the optical amplifier during an additional amplification. Optionally, a polarizer and Faraday rotator are used in the apparatus. The optical noise created in the optical amplifier is polarized in the polarizer after two amplifications, rotated in the Faraday rotator, then amplified two more times before leaving the apparatus.

REFERENCES:
patent: 3584312 (1971-06-01), Statz
patent: 3666349 (1972-05-01), Hubby, Jr.
patent: 3774120 (1973-11-01), Ross
patent: 3918007 (1975-11-01), Waksberg
patent: 4006426 (1977-02-01), Lacour
patent: 4498179 (1985-02-01), Wayne et al.
patent: 4656433 (1987-04-01), Franklin et al.
patent: 4923291 (1990-05-01), Edagawa et al.
patent: 4935932 (1990-06-01), Johnson et al.
patent: 4952017 (1990-08-01), Henry et al.
patent: 4955725 (1990-09-01), Johnson et al.
patent: 5048030 (1991-09-01), Hiiro
patent: 5052004 (1991-09-01), Gratze et al.
patent: 5136598 (1992-08-01), Weller et al.
patent: 5177634 (1993-01-01), Way
"High Power, Compact 1.multidot.48.mu.m Diode-Pumped Broadband Superfluorescent Fibre Source At 1.multidot.55.mu.m," by H. Fevrier et al., Electronics Letters, vol. 27, No. 3 pp. 261-262, Jan. 31, 1991.
"Multipass Amplifiers Using Optical Circulators," by J. Krasinski, D. F. H Heller and Y. B. Band, IEEE Journal of Quantum Electronics, vol. 26, No. 5, pp. 950-958, May 1990.
"Gain and Noise Characterisation of Erbium Doped Fibre Amplifiers," by G. R. Walker, Electronics Letters, vol. 27, No. 9, pp. 744-745, Apr. 25, 1991.
"Polarization noise suppression in retracing optical fiber circuits," by Natale C. Pistoni and Mario Martinelli, Optics Letters, vol. 16, No. 10, pp. 711-713, May 15, 1991.
"Birefringence Effects Suppression in Optical Fiber Sensor Circuits," by N. C. Pistoni and N. Martinelli, CISE Tecnologie Innovative, Milano, Italy, pp. 125-128.
"Polarisation-Insensitive Fibre Optic Michelson Interferometer," by A. Kersey et al., Electronics Letters, vol. 27, No. 6, pp. 518-520, Mar. 14, 1991.

Affiliated with

Also associated with

Rating

Variable spectral width multiple pass optical noise source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable spectral width multiple pass optical noise source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable spectral width multiple pass optical noise source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-312561