نتایج جستجو برای: vcsel

تعداد نتایج: 808  

Journal: :Optics express 2006
P C Peng H C Kuo W K Tsai Y H Chang C T Lin S Chi S C Wang G Lin H P Yang K F Lin H C Yu J Y Chi

This investigation experimentally demonstrates the dynamic characteristics of quantum dot vertical-cavity surface-emitting lasers (QD VCSEL) without and with light injection. The QD VCSEL is fully doped structure on GaAs substrate and operates in the 1.3 mum optical communication wavelength. The eye diagram, frequency response, and intermodulation distortion are presented. We also demonstrate t...

Journal: :Optics express 2015
Seung-Min Lee Su-Hyun Gong Jin-Ho Kang Mohamed Ebaid Sang-Wan Ryu Yong-Hoon Cho

Laser operation of a GaN vertical cavity surface emitting laser (VCSEL) is demonstrated under optical pumping with a nanoporous distributed Bragg reflector (DBR). High reflectivity, approaching 100%, is obtained due to the high index-contrast of the nanoporous DBR. The VCSEL system exhibits low threshold power density due to the formation of high Q-factor cavity, which shows the potential of na...

1997
Timothy H. Russell Tom D. Milster

Orthogonal polarizations within vertical-cavity surface-emitting lasers ~VCSEL! lase at slightly different wavelengths. We describe the use of optical feedback to confine polarization variations to reproducible injection currents. An external cavity is used to select specific wavelengths that reflect back into the VCSEL, hence, changing the cavity Q for the different polarization states. With t...

2013
M. T. Johnson K. D. Choquette

Introduction: Two-dimensional (2D)-phased vertical cavity surface-emitting laser (VCSEL) arrays offer unique advantages for scaling up single-mode power for high-brightness applications such as fibre laser pumps. They tend, however, to operate in the undesirable out-of-phase mode, which has an on-axis null in the far field [1]. In-phase VCSEL arrays with an on-axis maximum in the far field have...

2012
Ireneusz Grulkowski Jonathan J. Liu Benjamin Potsaid Vijaysekhar Jayaraman Chen D. Lu James Jiang Alex E. Cable Jay S. Duker James G. Fujimoto

We demonstrate swept source OCT utilizing vertical-cavity surface emitting laser (VCSEL) technology for in vivo high speed retinal, anterior segment and full eye imaging. The MEMS tunable VCSEL enables long coherence length, adjustable spectral sweep range and adjustable high sweeping rate (50-580 kHz axial scan rate). These features enable integration of multiple ophthalmic applications into o...

2004
Angelique Rissons Julien Perchoux Jean-Claude Mollier Martin Grabherr

Current evolution in Datacoms and Gigabit Ethernet have made 850nm Vertical Cavity Surface Emitting Lasers (VCSEL) the most important and promising emitter. Numerous different structures have been growth, to obtain best current confinement and then to control the emitted light modal behavior. We have developed a small signal equivalent electrical model of VCSEL including Bragg reflectors, activ...

Journal: :Optics express 2010
Maciej Dems Il-Sug Chung Peter Nyakas Svend Bischoff Krassimir Panajotov

We show comparison of four different numerical methods for simulating Photonic-Crystal (PC) VCSELs. We present the theoretical basis behind each method and analyze the differences by studying a benchmark VCSEL structure, where the PC structure penetrates all VCSEL layers, the entire top-mirror DBR, a fraction of the top-mirror DBR or just the VCSEL cavity. The different models are evaluated by ...

2008
Kang-Yeob Park

10-Gb/s Optical Receiver and VCSEL Driver in 0.13-μm CMOS Technology

2000
Yue Liu

This paper describes most recent development and demonstration of a VCSEL-based smart pixel array (SPA) technology for chip-to-chip interconnect. This technology is based on Honeywell's commercial successful 850nm VCSEL components, incorporates both monolithic and hybrid integration techniques, and aims to address anticipated interconnect bottleneck in networking interconnect fabric and between...

2008
E. Mohammed J. Liao A. Kern D. Lu H. Braunisch T. Thomas S. Hyvonen S. Palermo I. A. Young

We describe the design and development of a high-speed 8-channel hybrid integrated optical transceiver package with Clock and Data Recovery (CDR) circuits. The package concept has been developed to be compatible with microprocessor package technology and at the same time allow the integration of low cost, high-performance optical components. A 90nm CMOS optical transceiver chip, 850nm 10Gb/s Ga...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید