Daniel Mahgerefteh

Title: Daniel Mahgerefteh: Pioneering Innovator in Optical Component Testing and Si Photonics

Introduction:

In the vast world of technology and innovation, certain individuals shine for their exceptional contributions. Today, we delve into the accomplishments of Daniel Mahgerefteh, an esteemed inventor, and patent holder. With 83 patents to his name, Mahgerefteh has made remarkable advancements in the fields of optical component testing and silicon (Si) photonics. This article examines some of his latest patents, the companies he has worked with, and his collaborations with notable colleagues.

Latest Patents:

1. Wafer Level Testing of Optical Components:

Mahgerefteh's patent introduces a novel system that utilizes a wafer containing integrated circuits (ICs) and defined cavities. Each cavity is situated in a back-end-of-line (BEOL) layer of the wafer, adjacent to a distinct IC. The system further incorporates an interposer, featuring a transparent layer permitting the passage of optical signals. The interposer includes at least one waveguide adjacent to the transparent layer, serving to adiabatically couple optical signals from multiple ICs. Additionally, a redirecting element within the interposer receives and vertically redirects these optical signals towards the transparent layer.

2. Grating Coupled Laser for Si Photonics:

This patent introduces a new type of grating coupled laser (GCL) that comprises an active section and a passive section. The passive section is butt coupled to the active section through a butt joint. Within the active section lies an active waveguide, whereas the passive section consists of a passive waveguide, a transmit grating coupler, and a top cladding. The passive waveguide connects end to end with the active waveguide and includes a first and second portion. A transmit grating coupler, featuring grating teeth extending upward from the second portion, enhances optical coupling. Notably, a top cladding resides directly above the first portion, with areas directly above certain transmit grating couplers remaining absent.

Companies and Collaborations:

1. II-VI Delaware, Inc.:

Daniel Mahgerefteh has actively contributed to the advancements of II-VI Delaware, Inc. The company, known for its expertise in optoelectronic components, materials, and devices, has undoubtedly been enriched by Mahgerefteh's technical prowess and innovative thinking.

2. Finisar Corporation:

Another company fortunate to have Mahgerefteh as part of its team is Finisar Corporation. As a prominent provider of optical communication solutions and industry-leading technology, Finisar Corporation has undoubtedly benefited from Mahgerefteh's contributions in the field of Si photonics.

Notable Colleagues:

1. Parviz Tayebati:

Parviz Tayebati stands as an esteemed colleague who has worked alongside Daniel Mahgerefteh. As both inventors and innovators, their collaborations have brought forth groundbreaking advancements in optical technologies.

2. Yasuhiro Matsui:

Daniel Mahgerefteh has also collaborated with the accomplished inventor, Yasuhiro Matsui. Their joint efforts have pushed the boundaries of Si photonics, making significant contributions to the field.

Conclusion:

Daniel Mahgerefteh's exemplary work in optical component testing and Si photonics has earned him a well-deserved place in the realm of innovation and patents. With an impressive portfolio of 83 patents, his groundbreaking developments continue to shape the future of these industries. Through his collaborations with notable companies and esteemed colleagues, Mahgerefteh's contributions have left an indelible impact on the field of technology.