Emiko Fujiwara

Title: Emiko Fujiwara: Innovator in Optical Fiber Measurement

Introduction

Emiko Fujiwara is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of optical fiber measurement, holding a total of 3 patents. Her innovative work focuses on developing advanced apparatuses and methods for accurately measuring the characteristics of optical fibers.

Latest Patents

One of her latest patents is an "Apparatus and method for measuring characteristics of optical fibers." This invention provides a method for accurate measurement of polarization mode dispersion and birefringence in optical fibers. The apparatus utilizes pulse light inputted into the optical fiber, with back scattered light detected by a photodetector to find a Stokes vector. This allows for the measurement of polarization mode dispersion in a longitudinal direction. The apparatus includes a light source unit that outputs pulse light with at least three different angular frequencies, along with an arithmetic operation unit that calculates the magnitude of linear and circular polarization components based on the Stokes vector.

Another notable patent is the "Apparatus and method for measuring a phase delay characteristic." This device features an in-phase component calculating means that outputs a correlation value between input sampling data and ideal sine waveform data. It also includes a quadrature component calculating means for outputting a correlation value with ideal cosine waveform data. The phase angle calculating means outputs phase angles based on these signals, while the phase delay calculating means determines the amount of phase delay of the tested device.

Career Highlights

Emiko has worked with notable companies such as Ando Electric Company and Yokogawa Electric Corporation. Her experience in these organizations has contributed to her expertise in optical technologies and measurement systems.

Collaborations

Throughout her career, Emiko has collaborated with esteemed colleagues, including Tetsuo Yano and Shouichi Aoki. These partnerships have fostered innovation and advancement in her field.

Conclusion

Emiko Fujiwara is a trailblazer in the realm of optical fiber measurement, with her patents reflecting her dedication to innovation. Her work continues to influence the industry and pave the way for future advancements in optical technologies.