Integrated Optical Components in Silicon for High Speed Analog-to- Digital Conversion
نویسندگان
چکیده
Advances in femtosecond lasers and laser stabilization have led to the development of sources of ultrafast optical pulse trains that show jitter on the level of a few femtoseconds over tens of milliseconds and over seconds if referenced to atomic frequency standards. These low jitter sources can be used to perform opto-electronic analog to digital conversion that overcomes the bottleneck set by electronic jitter when using purely electronic sampling circuits and techniques. Electronic Photonic Integrated Circuits (EPICs) may enable in the near future to integrate such an opto-electronic analog-to-digital converters (ADCs) completely. This presentation will give an overview of integrated optical devices such as low jitter lasers, electro-optical modulators, Si-based filter banks, and high-speed Si-photodetectors that are compatible with standard CMOS processing and which are necessary for the implementation of EPIC-chips for advanced opto-electronic ADCs.
منابع مشابه
Designing an Integrated All-Optical Analog to Digital Converter
We present the procedure for designing a high speed and low power all-optical analog to digital converter (AO-ADC), by integrating InGaAsP semiconductor optical amplifier (SOA) with InP based photonic crystal (PhC) drop filters. The self-phase modulation in the SOA can shift the frequency of the Gaussian input pulse. The two output PhC based drop filters are designed to appropriately code the f...
متن کاملPhotonic Analog-to-Digital Conversion with Electronic-Photonic Integrated Circuits
Photonic Analog-to-Digital Conversion (ADC) has a long history. The premise is that the superior noise performance of femtosecond lasers working at optical frequencies enables us to overcome the bottleneck set by jitter and bandwidth of electronic systems and components. We discuss and demonstrate strategies and devices that enable the implementation of photonic ADC systems with emerging electr...
متن کاملSingle Port Optical Switching in Integrated Ring Resonators
We have experimentally investigated single-port injection-triggered switching in a new class of semiconductor ring lasers with integrated gain, phase and passive waveguide sections as a building-block for all-optical signal processing such as high-speed analog-to-digital conversion. ©2009 Optical Society of America OCIS codes: (250.3140) Integrated optoelectronic circuits; (140.3560) Lasers, ring
متن کاملA Switched Opamp Comparator to Improve the Conversion Rate of Low-Power Low-Voltage Successive Approximation ADCs
The continued drive toward technology scaling in VLSI design has provided greater integration levels in silicon chips. Thanks to the reduction in minimum feature size and the corresponding decrease in power supply voltage, digital circuits have benefited from savings in area and power consumption. This approach presents a number of challenges in Complementary Metal-Oxide Semiconductor (CMOS) an...
متن کاملHigh speed analog-to-digital conversion with silicon photonics
Sampling rates of high-performance electronic analog-to-digital converters (ADC) are fundamentally limited by the timing jitter of the electronic clock. This limit is overcome in photonic ADC’s by taking advantage of the ultra-low timing jitter of femtosecond lasers. We have developed designs and strategies for a photonic ADC that is capable of 40 GSa/s at a resolution of 8 bits. This system re...
متن کامل