Flat-field fiber with small relative dispersion slope for superdense wavelength-division multiplexing transmission in the 1480-  to  1610-nm band

Ravi K. Varshney; Ajoy K. Ghatak; I. C. Goyal

doi:10.1117/1.2719728

1 April 2007 Flat-field fiber with small relative dispersion slope for superdense wavelength-division multiplexing transmission in the 1480- to 1610-nm band

Ravi K. Varshney, Ajoy K. Ghatak, I. C. Goyal

Author Affiliations +

Optical Engineering, Vol. 46, Issue 4, 045001 (April 2007). https://doi.org/10.1117/1.2719728

Abstract

We report a design for a small-residual-dispersion fiber system suitable for all wavelengths in the range of 1480 to 1610 nm, which covers the entire S to L bands. It consists of a small-relative-dispersion-slope fiber (SRDSF) with a flat modal field over the central part of the core, and the corresponding dispersion-compensating fiber (DCF). The SRDSF has mode field diameter (MFD) <10 μm at wavelength λ0=1.55 μm, leading to the large effective area (Aeff≈ 95 μm²) required to reduce nonlinear effects, and dispersion 9.5 ps/(km nm) with small relative dispersion slope <0.003 nm−1 at λ0=1.565 μm. The DCF, which is based on the dual-core coaxial configuration, has large negative dispersion [ ≈−248 ps/(km nm) at λ0=1.565 μm], leading to a large figure of merit (FOM). The dispersion slopes of these fibers are so adjusted that a small length of DCF will compensate the accumulated dispersion in the SRDSF simultaneously at all wavelengths in the range of 1480 to 1610 nm. The maximum values of the effective dispersion of the fiber system and its slope are about ±0.2 ps/(km nm) and ±0.03 ps/(km nm²), respectively, in the entire wavelength range of 1480 to 1610 nm.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Ravi K. Varshney, Ajoy K. Ghatak, and I. C. Goyal "Flat-field fiber with small relative dispersion slope for superdense wavelength-division multiplexing transmission in the 1480- to 1610-nm band," Optical Engineering 46(4), 045001 (1 April 2007). https://doi.org/10.1117/1.2719728

Published: 1 April 2007

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available