Background-free balanced optical cross correlator

Patent · 23 December 2014

OSTI ID:1166014

Nejadmalayeri, Amir Hossein; Kaertner, Franz X

A balanced optical cross correlator includes an optical waveguide, a first photodiode including a first n-type semiconductor and a first p-type semiconductor positioned about the optical waveguide on a first side of the optical waveguide's point of symmetry, and a second photodiode including a second n-type semiconductor and a second p-type semiconductor positioned about the optical waveguide on a second side of the optical waveguide's point of symmetry. A balanced receiver including first and second inputs is configured to produce an output current or voltage that reflects a difference in currents or voltages, originating from the first and the second photodiodes of the balanced cross correlator and fed to the first input and to the second input of the balanced receiver.

• Research Organization: Massachusetts Institute of Technology, Cambridge, MA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: SC0005262
• Assignee: Massachusetts Institute of Technology (Cambridge, MA)
• Patent Number(s): 8,916,813
• Application Number: 13/613,257
• OSTI ID: 1166014
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS