Entries by assist01

Remote Wavelength Tracking of Strongly Chirped Tunable 10G MEMS-VCSEL

Jim Zou1, Mohmmed Al Houri1,2, Hung-Kai Chen3, Michael Eiselt1 1 ADVA Optical Networking SE, Märzenquelle 1-3, 98617 Meiningen, Germany 2 Friedrich-Schiller-Universität Jena, Faculty of Physics and Astronomy, Max‐Wien‐Platz 1, 07743 Jena, Germany, 3 Bandwidth10 Ltd., Berkeley, CA, USA jzou@advaoptical.com Abstract: We successfully demonstrated the centralized wavelength control in a passive port-agnostic WDM fronthaul system for […]

Tunable 1550nm VCSELs using high-contrast grating for next-generation networks

Christopher Chase*a, Yi Raoa, Michael Huanga, Connie Chang-Hasnaina, b aBandwidth10, Inc., 3575 Sweigert Road, San Jose, CA, USA 95132; bDept. of Electical Engineering and Computer Sciences, University of California-Berkeley, Berkeley, CA USA 94709 ABSTRACT We demonstrate wavelength-tunable SFF transceivers operating at 1550 nm using a tunable VCSEL with a high contrast grating (HCG) as the […]

1550 nm high contrast grating VCSEL

Christopher Chase, Yi Rao, Werner Hofmann, and Connie J. Chang-Hasnain* Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA *cch@eecs.berkeley.edu Abstract: We demonstrate an electrically pumped high contrast grating (HCG) VCSEL operating at 1550 nm incorporating a proton implant- defined aperture. Output powers of >1 mW are obtained at room […]

Long-Wavelength VCSEL Using High-Contrast Grating

Yi Rao, Student Member, IEEE, Weijian Yang, Student Member, IEEE, Christopher Chase, Michael C. Y. Huang, D. Philip Worland, Salman Khaleghi, Mohammad Reza Chitgarha, Morteza Ziyadi, Alan E. Willner, Fellow, IEEE, and Connie J. Chang-Hasnain, Fellow, IEEE Abstract—Recent advances in high-contrast grating (HCG) vertical-cavity surface-emitting lasers (VCSEL) emitting at 1550 nm is reported in this […]

A surface-emitting laser incorporating a high-index-contrast subwavelength grating

MICHAEL C.Y. HUANG, Y. ZHOU AND CONNIE J. CHANG-HASNAIN* Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, California 94720, USA *e-mail: cch@eecs.berkeley.edu Published online: 1 February 2007; doi:10.1038/nphoton.2006.80 Semiconductor diode lasers can be used in a variety of applications including telecommunications, displays, solid-state lighting, sensing and printing. Among them, vertical-cavity surface-emitting […]

Electrically-Pumped 1050-nm MEMs Tunable VCSELs Wide tuning Range for OCT Applications

Abstract—We report an electrically-pumped 1050 nm micro-electro-mechanically-tunable vertical-cavity surface- emitting-laser (MEMS-VCSEL) with a record single-mode, continuous, mechanical tuning range of 73.2 nm with hig output power and low threshold current performance, which is suitable for next generation swept-source optical coherence tomography (OCT) imaging and sensing applications. Keywords—Vertical-cavity surface-emitting laser, Optical Coherence Tomography, Optical microelectromechanical (MEMS) […]

10 Gbps Tunable VCSEL-based SFP+ with Integrated G.METRO Functionality for Fronthaul Access Networks

Hung Kai Chen, Christopher Chase*, and Michael Huang Bandwidth10 LTD, 1218 Seventh St., Suite A, Berkeley, CA, USA Email: cchase@bandwidth10.com Introduction Motivation Low cost, 10 Gbps, tunable, 1550 nm transceiver for DWDM PON front haul access networks driven by C-RAN architectures Tunablility needed for lower in the field installation and maintenance costs Conventional wavelength lockers […]