Monolithic transmitter photonic integrated circuit (TxPIC) having tunable modulated sources with feedback system for source power level or wavelength tuning

US7751658B2 · kind B2 · utility

Assignee

• Infinera Corp. · US

Inventors

• David F. Welch · Atherton, US
• Vincent G. Dominic · Fremont, US
• Fred A. Kish, Jr. · Palo Alto, US
• Robert B. Taylor · Vancouver, US
• Matthew L. Mitchell · Monte Sereno, US
• Alan C. Nilsson · Mountain View, US
• Stephen G. Grubb · Atherton, US
• Charles H. Joyner · Sunnyvale, US

Key dates

• Filing date: Jul 5, 2007
• Grant date: Jul 6, 2010
• Expiry date: Jan 19, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/4087
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other modulated sources and a wavelength selective combiner having an input optically coupled to received all the signal outputs from the modulated sources and provide a combined output signal on an output waveguide from the chip. The modulated sources, combiner and output waveguide are all integrated on the same chip.