<title>Novel optical switch structure implemented with the function of power control and cross-talk reduction</title>

Reliable Low Cross Talk Digital Optical Switch Based on a Cascade Like Structure with Small Dimensions

Integrated Photonics Research ◽

10.1364/ipr.2001.ituh2 ◽

2001 ◽

Cited By ~ 3

Author(s):

R. Hauffe ◽

F. Kerbstadt ◽

U. Siebel ◽

J. Bruns ◽

K. Petermann

Keyword(s):

Cross Talk ◽

Optical Switch

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An improved polymer digital optical switch with cross talk of -46 dB

OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171) ◽

10.1109/ofc.2001.928391 ◽

2002 ◽

Cited By ~ 1

Author(s):

U. Siebel ◽

R. Hauffe ◽

J. Bruns ◽

K. Petermann

Keyword(s):

Cross Talk ◽

Optical Switch

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All-Optical Reversible Logic Gates with Optically Controlled Bacteriorhodopsin Protein-Coated Microresonators

Advances in Optical Technologies ◽

10.1155/2012/727206 ◽

2012 ◽

Vol 2012 ◽

pp. 1-12 ◽

Cited By ~ 22

Author(s):

Sukhdev Roy ◽

Purnima Sethi ◽

Juraj Topolancik ◽

Frank Vollmer

Keyword(s):

Low Power ◽

Power Control ◽

Near Infrared ◽

Optical Switch ◽

Logic Gates ◽

Single Mode ◽

Practical Applications ◽

Control Signals ◽

All Optical ◽

Reversible Logic Gates

We present designs of all-optical reversible gates, namely, Feynman, Toffoli, Peres, and Feynman double gates, with optically controlled microresonators. To demonstrate the applicability, a bacteriorhodopsin protein-coated silica microcavity in contact between two tapered single-mode fibers has been used as an all-optical switch. Low-power control signals (<200 μW) at 532 nm and at 405 nm control the conformational states of the protein to switch a near infrared signal laser beam at 1310 or 1550 nm. This configuration has been used as a template to design four-port tunable resonant coupler logic gates. The proposed designs are general and can be implemented in both fiber-optic and integrated-optic formats and with any other coated photosensitive material. Advantages of directed logic, high Q-factor, tunability, compactness, low-power control signals, high fan-out, and flexibility of cascading switches in 2D/3D architectures to form circuits make the designs promising for practical applications.

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