Ntt Electronics Corporation

Kitanihon Electric Cable Co., Ltd.

Yuji Akahori

Yasuyuki Nanaumi

Atsushi Kusayama

Kiyoshi Kido

Yuichi Suzuki

Yasuaki Tamura

Yuto Yamashita

Etsuo Ogino

Keiichi Sasaki

Ensuring that a control program of a programmable electronic component included in an optical module updatable as well while a control program of a microprocessor included in the optical module is in operation. A module that functions by causing an electronic component to operate, a microprocessor located in the module and coupled to a host device via communicating device uses data in the S-record format downloaded from the host device using the communicating device to update a control program of the electronic component.

Module, information processing device equipped with same, and method for updating program data to update program data in module

An optical module of a configuration that ensures use of commercially available electronic components and reduction of the number of current generation circuits and electric wirings. The optical module includes an electronic component mounted on a separate board from a light wave circuit board provided with an optical component such as an optical switch, and they are each electrically connected by wire bonding. For this reason, the optical module can use a commercially available electronic component. In addition, the module has a configuration in which heaters of optical switches, which do not simultaneously flow currents, are grouped and a current from one current generation circuit is supplied to any one of the heaters in the group by means of one electrical switch. For this reason, the optical module does not have to be prepared with the same number of electrical switches and current generation circuits as the number of heaters.

Optical module

The present invention provides an array-type photo module including a filter, which, in each channel, transmits therethrough a portion of emitted light from an incident optical fiber on the opposite side of a gradient-index lens array and reflects another portion of the emitted light from the incident optical fiber toward the gradient-index lens array, and a light-shielding member which is arranged on the opposite side of the filter from the gradient-index lens array, so as to be spaced from the filter and, in each channel, has an opening passing therethrough transmitted light from the filter on the opposite side of the filter. The array-type photo module is easily and inexpensively manufactured, and may be used in a high-density array, with low crosstalk.

Array-type photo module

Growing community of inventors

Yokohama, Japan

Yuji Akahori