论文信息 - A polarization-independent 1 × 16 guided-wave optical switch integrated on lithium niobate

A polarization-independent 1 × 16 guided-wave optical switch integrated on lithium niobate

We report the fabrication and testing of several models of a complex integrated Ti : LiNbO 3 switch array, a one-input-to-sixteen-output switch that is polarization independent for use with standard single-mode fibers. The switch array has 15 directional couplers arranged in a binary tree with four ranks. The device is fitted with connectorized single-mode fiber pigtails and housed in a package that permits convenient transport and use. The best measured losses (fiber-waveguide-fiber) are 3.0 dB for the TE polarization and 3.6 dB for the TM. Permanent attachment of the pigtails adds 0.65-dB loss. Crosstalk suppression averages 10 dB below the transmitted signal for the brightest unwanted path.

J. E. Watson | T. Rice | M. Milbrodt | T. Rice | M. Milbrodt

[1] Rodney C. Alferness,et al. Filter characteristics of codirectionally coupled waveguides with weighted coupling , 1978 .

[2] Leon McCaughan,et al. Permanent attachment of single-mode fiber arrays to waveguides , 1985 .

[3] J. E. Watson. Polarization-independent 1 × 16 optical switch using Ti:LINbO 3 waveguides , 1985 .

[4] Leon McCaughan,et al. Influence of temperature and initial titanium dimensions of fiber-Ti:LiNbO 3 waveguide insertion loss at λ = 1.3 µm , 1983 .

[5] T. Rice,et al. Low-loss coupling of multiple fiber arrays to single-mode waveguides , 1983, Journal of Lightwave Technology.

[6] K. Habara,et al. Optical time-division space switches using tree-structured directional couplers , 1985 .

[7] Th. Hermes,et al. LOCNET--A local area network using optical switching , 1985 .

[8] Leon McCaughan. Low-loss polarization-independent electrooptical switches at λ = 1.3µm , 1984 .

[9] Hermann A. Haus,et al. Elimination of cross talk in optical directional couplers , 1985 .

[10] R. Alferness,et al. Polarization‐independent optical directional coupler switch using weighted coupling , 1979 .

[11] R. Schmidt,et al. Switched directional couplers with alternating Δ Β , 1976 .

[12] R. Alferness,et al. Efficient single-mode fiber to titanium diffused lithium niobate waveguide coupling for λ = 1.32 µm , 1982 .