Optical isolator device having a wider cutoff wavelength band fo

Details Optical isolator device having a wider cutoff wavelength band fo Optical isolator device having a wider cutoff wavelength band fo

1993-08-24

1994-12-20

Lerner, Martin

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359484, 372703, G02B 530, G02F 109, G02F 1095

Patent

active

053750098

ABSTRACT:
In an optical isolator device comprising a plurality of optical isolator elements each of which comprises a pair of polarizers and a magneto-optical element disposed between said polarizers, the optical isolator elements have element cutoff wavelength bands which are different from one another. The optical isolator elements are arranged in series with an optical axis in common. Each element cutoff wavelength band is defined by an element cutoff central wavelength for a return light beam. The optical isolator device has a device cutoff wavelength band for the return light beam that is defined by a device cutoff central wavelength. When the optical isolator elements are equal in number to two, both of the optical isolator elements have a common wavelength area where the element cutoff wavelength bands overlap each other. One of the optical isolator elements has an element cutoff central wavelength shorter than the device cutoff central wavelength, while another of the optical isolator elements has another element cutoff central wavelength longer than the device cutoff central wavelength.

REFERENCES:
patent: 4756607 (1988-07-01), Watanabe et al.
patent: 5105307 (1992-04-01), Nishiyama et al.

Affiliated with

Also associated with

Rating

Optical isolator device having a wider cutoff wavelength band fo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical isolator device having a wider cutoff wavelength band fo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical isolator device having a wider cutoff wavelength band fo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2388806