Integrated optical polarization manipulating device

Details Integrated optical polarization manipulating device Integrated optical polarization manipulating device

1994-01-19

1994-12-20

Lee, John D.

Optical waveguides

Polarization without modulation

385 14, 385 42, 385 50, G02B 612

Patent

active

053751787

ABSTRACT:
An integrated optical, polarization-manipulating device, comprises a first waveguiding section (A) with a first guide (21), a second waveguiding section (E) with a second and a third optically decoupled and physically separated guide (26, 27) and an intermediary waveguiding section (C) for an adiabatic coupling between the first and the second sections (A, B). The intermediary section (C) comprises a polarization-sensitive asymmetric Y-branching device, provided with two mutually diverging intermediary guides (24, 25), a monomodal (24) and a bimodal (25), coupled to the guides (26, 27), respectively, of the second section. The guides (21, 27) form, with dummy guides (22, 28), respectively, polarization-insensitive asymmetric Y-junctions which function as mode converters between zeroth- and first-order guided modes. Bimodal coupling sections (B, D) provide for adiabatic couplings between asymmetric Y-junctions and the intermediary section (C). Advantages: the device can be provided on non-birefringent materials; is relatively simple to manufacture; and, in the case of the ridge-type guide structure, only one etching step is required.

REFERENCES:
patent: 5119450 (1992-06-01), Ranganath et al.
patent: 5185828 (1993-02-01), Van Der Tol
patent: 5257330 (1993-10-01), Van Der Tol
patent: 5285507 (1994-02-01), Van Der Tol
patent: 5293436 (1994-03-01), Diemeer
J. J. G. M. Van Der Tol et al., "A Polarization Splitter on LiNbO.sub.3 Using Only Titanium Diffusion", Jul. 1991, pp. 879-886, Journal of Lightwave Technology, No. 7.
J. J. G. M. Van Der Tol et al., "Measurement of Mode Splitting in Asymmetric Y-Junctions", May 1992, pp. 454-457, IEEE Photonics Technology Letters, No. 5.
K. Matsubara et al., "Y-Branch TE-TM Mode Splitter Using Multilayered Waveguide", May 1992, pp. 1636-1640, Japanese Journal of Applied Physics, Part 1, No. 5b.

Affiliated with

Also associated with

Rating

Integrated optical polarization manipulating device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated optical polarization manipulating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated optical polarization manipulating device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2389991