Ryouji Handa

Title: Ryouji Handa: Innovator in Light Pulse Generation

Introduction

Ryouji Handa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, particularly in the development of light pulse generators. With a total of 2 patents, Handa's work showcases his innovative approach to enhancing light pulse generation.

Latest Patents

One of Handa's latest patents is a light pulse generator that comprises an optical main-loop, a pumped-light source, a delay optical fiber, and an optical switch controller. The optical main-loop circulates light and includes a light mixer, a light isolator, an erbium-doped optical fiber, an optical switch, a light divider, and an optical fiber coupler. The pumped-light source generates pumped-light and introduces it into the optical main-loop through the light mixer. The terminals of the delay optical fiber are connected to the optical fiber coupler, forming an optical sub-loop that spreads the pulse width of a light pulse circulating in the optical main-loop. The optical switch controller switches the optical switch to an ON-state, allowing for positive feedback amplification in the optical main-loop, resulting in an output light pulse with a sufficiently long pulse width and high power.

Another patent by Handa also focuses on a light pulse generator, which includes an optical loop, a pumped-light source, and an optical switch controller. The optical loop consists of a light mixer, a light isolator, an erbium-doped optical fiber, a light valve means, and a light divider. The pumped-light source generates pumped-light and introduces it into the optical loop through the light mixer. The optical switch controller progressively turns the optical switch to an ON-state using a control signal with a gentle positive slope. This allows for a gradual increase in the amount of light outputted through the optical switch, resulting in a light pulse with a gentle slope being picked up from the optical loop.

Career Highlights

Ryouji Handa has worked with prominent companies in the technology sector, including Ando Electric Company and Nippon Telegraph and Telephone Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovations.

Collaborations

Throughout his career, Handa has collaborated with notable individuals such as Nobuo Tomita and Yoshitaka Enomoto. These collaborations have likely enriched his work and led to advancements