Jose Krause Perin

Title: Innovations of Jose Krause Perin

Introduction

Jose Krause Perin is an accomplished inventor based in Stanford, California. He has made significant contributions to the field of optical communications, particularly through his innovative patent related to coherent receiver architectures.

Latest Patents

Jose Krause Perin holds a patent for a DSP-free coherent receiver. This invention discloses systems, methods, and structures for DSP-free coherent receiver architectures applicable for short-reach optical links. Operationally, a received optical signal is down-converted by mixing it with a local oscillator (LO) laser signal using a 90-degree hybrid followed by balanced photodiodes. Other receiver functions are performed using analog signal processing, thereby avoiding power-hungry, high-speed analog-to-digital converters and high-speed digital signal processing. Carrier phase recovery is performed by an electrical phase-locked loop employing a multiplier-free phase estimator stage that, while designed for quaternary phase-shift keying signals, may be employed in designs exhibiting higher modulation formats. Since carrier phase recovery is performed in the electrical domain, LO laser frequency modulation or LO laser integration is not employed. Polarization demultiplexing, if employed, may be performed by the addition of an optical polarization controller prior to the hybrid and may advantageously be realized by cascading multiple phase shifters driven by low-speed circuitry.

Career Highlights

Jose Krause Perin has dedicated his career to advancing optical communication technologies. His work at Leland Stanford Junior University has positioned him as a key figure in the development of innovative solutions for optical signal processing.

Collaborations

Some of his notable coworkers include Joseph Mardell Kahn and Anujit K Shastri. Their collaborative efforts have contributed to the advancement of research in optical communications.

Conclusion

Jose Krause Perin's contributions to the field of optical communications through his innovative patent demonstrate his expertise and commitment to advancing technology. His work continues to influence the development of efficient communication systems.