An optically transmitting first Substrate and a Second Sub Strate are opposed with Spacers
interposed therebetween, the Second Substrate including a plurality of optical elements …

An optical transmitter-receiver includes: an optical module including a metal package
housing at least a light receiving element and a light emitting element; a circuit board for …

US6477296B1 - Optical waveguide device, optical transmitting and receiving device, method of
manufacturing optical waveguide device and method of manufacturing optical transmitting and …

An optical functional device includes: a photodetector; a first optical waveguide which is
connected to one end face of the photodetector; and a second optical waveguide which is …

The present invention provides a photodetector which solves the problem of low sensitivity
of a photodetector, an optical communication device equipped with the same, and a method …

An optical circuit module comprises a substrate with a first optical coupler connected to a first
optical waveguide and a second optical coupler connected to a second optical waveguide …

0001. This application is a Continuation application of PCT Application No.
PCT/JP2010/060306, filed Jun. 17, 2010 and based upon and claiming the benefit of priority …

US PATENT DOCUMENTS JP 04-082268 3, 1992 6,049,118 A 4/2000 Nagano JP
O9219534 8, 1997 6,114,740 A 9, 2000 Takimoto et al. JP O9-307086 11, 1997 6,184,100 …

Filed: Mar. 4, 2015 An optical device for monotonously reducing light transmit tance from a
center portion thereof to a peripheral portion Related US Application Dat thereof. The optical …

An object of the invention is to provide an optical device and an optical device
manufacturing method wherein provisions are made to be able to Substantially prevent …