Makoto Jizodo

Title: Innovations of Makoto Jizodo

Introduction

Makoto Jizodo is a prominent inventor based in Atsugi, Japan. He has made significant contributions to the field of optical technology, holding a total of eight patents. His work focuses on enhancing optical circuits and improving transmission efficiency.

Latest Patents

One of his latest patents is the Optical 90 Degree Hybrid Circuit. This invention aims to provide an optical 90-degree hybrid formed of a silicon waveguide capable of suppressing optical loss and phase error. It facilitates both electronic and optical packaging. The design includes two optical branching units facing each other and two optical coupling units facing away from each other. Four arm waveguides are arranged, including bent waveguides that guide output light from the optical branching unit to the optical coupling unit, all formed in a curved shape.

Another notable patent is the Polarization Multiplexed Optical Transmitter Circuit and Polarization Multi/Demultiplexed Optical Transceiver Circuit. This invention provides compensation for transmission PDL while minimizing the decrease in transmission power. The circuit includes a beam divider configured to divide light outputted from a light source, optical phase shifters in at least one of two waveguides connected to output terminals of the beam divider, and a light wave synthesizer circuit connected to the two waveguides. It also features first and second optical transmitters coupled to the output terminals of the light wave synthesizer circuit, a polarization multiplexer to synthesize two output polarized waves, and a polarization rotator positioned between the optical transmitters and the multiplexer.

Career Highlights

Makoto Jizodo is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to innovate in the field of optical technology. His work has garnered attention for its practical applications in telecommunications and data transmission.

Collaborations

He has collaborated with notable coworkers such as Shin Kamei and Hiroshi Fukuda, contributing to advancements in optical circuit design and functionality.

Conclusion

Makoto Jizodo's contributions to optical technology through his patents demonstrate his commitment to innovation and excellence in the field. His work continues to influence advancements in telecommunications and optical systems.