Fiber coupled laser source pump with wavelength division multiplexer

US9935425B2 · kind B2 · utility

Assignee

• Lumentum Operations LLC · US

Inventors

• Yonghong Guo · Issaquah, US
• Jay A. Skidmore · San Jose, US
• Xia Hong · New Haven, US
• John MARTINHO · Ottawa, CA
• Huijie Xu · Milpitas, US
• Lihua Wang · Shanghai, CN
• Yaogeng Ding · Foster City, US
• Nicolas Guerin · San Jose, US

Key dates

• Filing date: Jan 31, 2017
• Grant date: Apr 3, 2018
• Expiry date: Jan 31, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/141
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A pump laser package may include an input fiber to send signal light on a first optical path. A first lens may be arranged on the first optical path. The pump laser package may include a source to send pump light on a second optical path. A second lens and a negative lens may be arranged on the second optical path. The first lens and the negative lens may be arranged to create a virtual image associated with the pump light. The pump laser package may include an output fiber on a third optical path. The first lens may be arranged on the third optical path. The pump laser package may include a combiner to receive the signal light on the first optical path, receive the pump light on the second optical path, and send the signal light and the pump light on the third optical path.