WDM Source Based on High-Power, Efficient 1280-nm DFB Lasers for Terabit Interconnect Technologies

被引：12

作者：

Buckley, Bob B. ^{[1
]}

Fryslie, Stewart T. M. ^{[1
]}

Guinn, Keith ^{[1
]}

Morrison, Gordon ^{[1
]}

Gazman, Alexander ^{[2
]}

Shen, Yiwen ^{[2
]}

Bergman, Keren ^{[2
]}

Mashanovitch, Milan L. ^{[1
]}

Johansson, Leif A. ^{[1
]}

机构：

[1] Freedom Photon, Santa Barbara, CA 93117 USA

[2] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2018年 / 30卷 / 22期

关键词：

Arrayed waveguide grating; DFB; optical interconnects; planar lightwave circuit; semiconductor lasers; star coupler; wavelength combiner; wavelength division multiplexing; DESIGN;

D O I：

10.1109/LPT.2018.2872597

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a proof-of-concept eight-channel wavelength-division-multiplexed (WDM) source for future terabit interconnects based on a highly efficient laser array. The array is composed of novel, high-power DFB lasers with record electro-optical efficiency, operating at 1280 nm, with >250-mW laser output power and laser efficiencies of up to 36%. The eight-laser array, with similar to 100-GHz channel spacing is optically butt-coupled to a planar lightwave circuit that consists of low-loss silicon nitride waveguides clad with silicon oxide for appropriate optical routing. Two types of optical routing are explored: 1) all 8 laser wavelengths are mixed and output into 10 channels via a star coupler and 2) the laser wavelengths are combined into a single output via an arrayed waveguide grating router. The mixed/combined light is then butt-coupled to a fiber array to output the WDM source signal into polarization preserving single-mode fibers. Improvements in insertion loss, particularly from optical butt coupling, will make this approach a viable option for efficient WDM light sources.

引用

页码：1929 / 1932

页数：4

共 14 条

[1] High-Speed Photonics for Side-by-Side Integration With Billion Transistor Circuits in Unmodified CMOS Processes [J].