Faraday rotator which generates a uniform magnetic field in a ma

Details Faraday rotator which generates a uniform magnetic field in a ma Faraday rotator which generates a uniform magnetic field in a ma

1996-08-29

1998-09-22

Ben, Loha

Optical: systems and elements

Optical modulator

Having particular chemical composition or structure

359281, 359283, G02F 100

Patent

active

058123040

ABSTRACT:
A Faraday rotator which includes a magnetic optical element and a magnetic field generating unit. The magnetic optical element has an optical path extending therethrough. The magnetic field generating unit is positioned so as not to obstruct the optical path, and generates a uniform magnetic field in the magnetic optical element. The magnetic field generating unit can include a first magnet unit and a second magnet unit. The first magnet unit is positioned so as not to obstruct the optical path and generates a magnetic field passing through the magnetic optical element. The second magnet unit is positioned so as not to obstruct the optical path and generates a magnetic field passing through the magnetic optical element. The magnetic field generated by the second magnet unit is perpendicular to the magnetic field generated by the first magnet unit and combines with the magnetic field generated by the first magnet unit to produce a uniform magnetic field in the magnetic optical crystal.

REFERENCES:
patent: 3376157 (1968-04-01), Guerci et al.
patent: 3407364 (1968-10-01), Turner
patent: 3411840 (1968-11-01), Robinson
patent: 3527577 (1970-09-01), Fan et al.
patent: 3558214 (1971-01-01), DeLang et al.
patent: 3700307 (1972-10-01), Glenn
patent: 4305046 (1981-12-01), Le Floch et al.
patent: 4387953 (1983-06-01), Shirasaki et al.
patent: 4548478 (1985-10-01), Shirasaki
patent: 4581579 (1986-04-01), Shirasaki
patent: 4609257 (1986-09-01), Shirasaki
patent: 4637027 (1987-01-01), Shirasaki et al.
patent: 4650289 (1987-03-01), Kuwahara
patent: 4668052 (1987-05-01), Shirasaki
patent: 4678287 (1987-07-01), Buhrer
patent: 4818881 (1989-04-01), Tanton et al.
patent: 4933629 (1990-06-01), Kozuka et al.
patent: 4973120 (1990-11-01), Jopson et al.
patent: 4984875 (1991-01-01), Abe et al.
patent: 4988170 (1991-01-01), Buhrer
patent: 5029953 (1991-07-01), Dexter et al.
patent: 5033830 (1991-07-01), Jameson
patent: 5050968 (1991-09-01), Ohara
patent: 5052786 (1991-10-01), Schulz
patent: 5212446 (1993-05-01), Itoh et al.
patent: 5267078 (1993-11-01), Shiraishi et al.
patent: 5345329 (1994-09-01), Shirai et al.
patent: 5521741 (1996-05-01), Umezawa et al.
patent: 5528415 (1996-06-01), Gauthier et al.
Shirasaki et al., "Magnetooptical 2.times.2 switch for single-mode fibers," Applied Optics, vol. 23, No. 19, Oct. 1984, pp. 3271-3276.
Sugaya et al., "Novel configuration for low-noise and wide-dynamic-range Er-doped fiber amplifier for WDM systems," OAA '95, Paper FC3, Jun. 16, 1995 (Davos, Switzerland), 4 pages.
N. Fukushima, H. Onaka, M. Shirasaki, Y. Suzuki, T. Tokumasu, "Non-Mechanical Variable Attenuator Module Using Faraday Effect", presented at the meeting Optical Amplifiers and their Application, held on Jul. 11-13, 1996, in Monterey, California, sponsored and managed by Optical Society of America.
M. Shirasaki, et al., "Compact Optical Isolator for Fibers Using Birefringent Wedges", Applied Optics, vol. 21, No. 23, pp. 42196-4299, (Dec. 1982).

Affiliated with

Also associated with

Rating

Faraday rotator which generates a uniform magnetic field in a ma does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Faraday rotator which generates a uniform magnetic field in a ma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Faraday rotator which generates a uniform magnetic field in a ma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1628194