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Dive into the research topics where Boris B. Stefanov is active.

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Featured researches published by Boris B. Stefanov.


optical fiber communication conference | 2007

A Performance Optimization Method for SOA-MZI Devices

Jade P. Wang; Bryan S. Robinson; Shelby J. Savage; Scott A. Hamilton; Erich P. Ippen; Ruomei Mu; Hongsheng Wang; Jiten Sarathy; Boris B. Stefanov

We present a novel characterization method for semiconductor optical amplifier Mach-Zehnder interferometer (SOA-MZI) switches which combines a pump-probe measurement with an interferometer bias scan. This enables optimal bias identification and better understanding of switching dynamics.


conference on lasers and electro optics | 2007

Regeneration using an SOA-MZI in a 100-pass 10,000-km Recirculating Fiber Loop

Jade P. Wang; Shelby J. Savage; Bryan S. Robinson; Scott A. Hamilton; Erich P. Ippen; Ruomei Mu; Hongsheng Wang; Leo Spiekman; Boris B. Stefanov

We demonstrate all-optical regeneration in an SOA-MZI on a 10-Gb/s picosecond pulse train over 10,000 km in a 100-km recirculating loop. The bit-error rate after 100 loop-passes shows a 0.5-dB penalty.


Optics Express | 2008

Efficient performance optimization of SOA-MZI devices

Jade P. Wang; Bryan S. Robinson; Shelby J. Savage; Scott A. Hamilton; Erich P. Ippen; Ruomei Mu; Hongsheng Wang; Jiten Sarathy; Boris B. Stefanov

We present a novel characterization method for semiconductor optical amplifier Mach-Zehnder interferometer (SOA-MZI) switches which combines a pump-probe measurement with an interferometer bias scan. In addition to a wealth of information on the switching dynamics for all operating points of the switch, we can create an extinction map to pinpoint regions of highest extinction for optimizing all-optical ultrafast switching. We experimentally verify the accuracy of this characterization method by performing a wavelength characterization at the optimal bias point and a nearby, non-optimal point. A 1-dB penalty was observed.


optical fiber communication conference | 2008

All-Optical Swapping of Digital Lightpath Labels

Mark D. Feuer; Christina Hruska; Hongsheng Wang; Leo Spiekman; Boris B. Stefanov; Vinay A. Vaishampayan

We describe a new method of swapping digital lightpath labels, by selective inversion of blocks of bits. All-optical label swapping is demonstrated using an SOA-MZI regenerator, optically switched from inverting to non-inverting operation.


international conference on transparent optical networks | 2008

Emerging applications of III/V components

Leo Spiekman; Hongsheng Wang; David Piehler; Boris B. Stefanov

III/V semiconductor devices have many application fields in optics. The compactness, wavelength agility, and integratability provide for a wide range of functionality. We will review the potential of these devices, with an emphasis on semiconductor optical amplifiers and integrated devices that contain them.


IEEE Photonics Technology Letters | 2008

Simultaneous Data Regeneration and Digital Label Swapping in an SOA-MZI Device

Mark D. Feuer; Christina Hruska; Hongsheng Wang; Leo Spiekman; Boris B. Stefanov; Vinay A. Vaishampayan

We demonstrate all-optical regeneration of a 10-Gb/s data stream, with bit-error-rate improvement, simultaneously with digital label swapping, in a monolithically integrated semiconductor optical amplifier Mach–Zehnder interferometer device.


2007 Photonics in Switching | 2007

Efficient Performance Optimization for Ultrafast All-Optical Switching in SOA-MZI Devices

Jade P. Wang; Bryan S. Robinson; Shelby J. Savage; Scott A. Hamilton; Erich P. Ippen; Ruomei Mu; Hongsheng Wang; Jiten Sarathy; Boris B. Stefanov

We present a simple method for optimization of ultrafast switching performance in semiconductor optical amplifier Mach-Zehnder interferometer (SOA-MZI) devices. By simultaneously measuring switching dynamics over all possible interferometer bias points, we acquire an extinction map which accurately identifies operating conditions for high extinction and optimal switching.


optical fiber communication conference | 2005

A new architecture for counterpropagation-based photonic regeneration and reshaping

Ganesh Lakshminarayana; Jiten Sarathy; Boris B. Stefanov; Ruomei Mu; Tammy Thai; David Lowe

This paper presents the honeycomb architecture for performing photonic regeneration and re-shaping in the counter-propagation. We demonstrate the suppression of undesired gain compression and cross-gain modulation effects along with significant improvement of input power sensitivity.


Archive | 2005

Photonic integrated circuit

Ganesh Lakshminarayana; Jithamithra Sarathy; Boris B. Stefanov


european conference on optical communication | 2005

Integrated performance monitoring, performance maintenance, and failure detection for photonic regenerators

Ganesh Lakshminarayana; Ruomei Mu; Hongsheng Wang; Jithamithra Sarathy; Boris B. Stefanov

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Dive into the Boris B. Stefanov's collaboration.

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Bryan S. Robinson

Massachusetts Institute of Technology

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Erich P. Ippen

Massachusetts Institute of Technology

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Jade P. Wang

Massachusetts Institute of Technology

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Scott A. Hamilton

Massachusetts Institute of Technology

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Shelby J. Savage

Massachusetts Institute of Technology

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