Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Patent
1997-03-03
1998-09-29
Bovernick, Rodney B.
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
G02F 1035
Patent
active
058156100
ABSTRACT:
A system comprises a substrate 4, an incident optical waveguide 5 formed on the substrate for receiving a light beam incident thereto, two phase-shift optical waveguides 6 formed on the substrate 4 to be branched from the incident optical waveguide 4 for varying a phase of a transmitted light beam in response to an electric field intensity, an outgoing optical waveguide 7 formed on the substrate 4 to join the phase-shift optical waveguides 6. At least one of the phase-shift optical waveguides 6 has a reversely polarized portion 8 reversely polarized. A light transmission film may be formed at one or a plurality of portions on the phase-shift optical waveguides 6. A buffer layer 14 may be formed on a part on or in the vicinity of the phase-shift optical waveguides 6. A transparent substance film for imparting a stress to one of the phase-shift optical waveguides 6 may be formed on a part or a whole of a portion without the buffer layer 14. A stress imparting member may be formed to impart a stress to a part of one of the phase-shift optical waveguides 6. A light irradiation unit 26 may be formed to irradiate a light beam onto a part or a whole of one of the phase-shift optical waveguides 6.
REFERENCES:
patent: 4877298 (1989-10-01), Teng et al.
patent: 4936645 (1990-06-01), Yoon et al.
patent: 5091983 (1992-02-01), Lukosz
patent: 5267336 (1993-11-01), Sriram et al.
patent: 5333217 (1994-07-01), Kossat
IEEE Photonics Technology Letters, Jun., 1991, USA, vol. 3, No. 6, ISSN 1041-1135, pp. 510-512, XP 000227339 C.H. Bulmer, et al "Phase Tuning By Laser Ablation Of LiNbO.sub.3 Interferometric Modulators To Optimum Linearity".
Muramatsu Ryoji
Takeda Tsugio
Tanabe Takanobu
Tokano Yuichi
Bovernick Rodney B.
Tokin Corporation
Wise Robert E.
LandOfFree
Optical modulation system 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 modulation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical modulation system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-694196