A method for manufacturing a semiconductor device having a compound semiconductor
layer that is provided on a substrate and includes a cladding layer of a first conductivity type …

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 …

An optical apparatus includes an optical device arranged on an optical path extending from
a light source to a predeter mined position, an optical sensor, and a measuring device which …

An optical module has a Support board, an optical transmis sion path, and at least a single
optical element having a light receiving function or a light emitting function provided on the …

An optical transmitter module includes optical semiconductor devices including a first optical
semiconductor device, a temperature adjustment means for collectively performing …

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 …

(57) ABSTRACT A semiconductor photodiode device includes a semiconduc tor substrate, a
first buffer layer containing a material differ ent from that of the semiconductor substrate in a …

An optical element according to the present invention is provided, which comprises an
optical surface at a center portion thereof; and a spacer section having a predetermined …

Any and all priority claims identified in the Application Data Sheet, or any correction thereto,
are hereby incorpo rated by reference under 37 CFR 1.57. This application claims the …

An optical transmission/reception device includes at least one light emitting portion and at
least one light receiving portion on the same Substrate. The light emitting portion includes at …