Writing of Bragg Gratings with Wavelength Flexibility Using a Sagnac Type Interferometer and Application to Fh-cdma

نویسندگان

  • P.-Y. Cortès
  • H. Fathallah
  • S. LaRochelle
  • L. A. Rusch
  • P. Loiselle
چکیده

We present an interferometric setup to write apodized or apodized-chirped Bragg Gratings at any wavelength with the same phase mask and to a precision of 0.1 nm. An encoder for CDMA applications is realized.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Intrinsic apodization of Bragg gratings written using UV-pulse interferometry

We present a new interferometric technique to write apodized Bragg gratings. Along the fiber, two UV-pulses interfere with a variable time delay creating a gaussian apodization profile which strongly reduces the reflectivity side-lobes. This method allows writing of truly apodized gratings by single exposure of a uniform phase-mask. Introduction: In optical communication systems, applications o...

متن کامل

Optical pulse compression based on nonlinear silicon waveguides and chirped Bragg gratings

Due to the growing demand for higher bandwidth, employing optical devices instead of electronic devices in data transmission systems has attracted much attention in recent years. Optical switches, modulators and wavelength converters are a few examples of the required optical devices. CMOS compatible fabrication of these devices, leads to much more growing of this technology. Optical pulse comp...

متن کامل

Optical Frequency-Hop Multiple Access Communications System

We propose fast optical frequency-hop code division multiple access (FH-CDMA) for high bandwidth local area networks. Encoding and decoding are achieved by tunable fiber Bragg gratings. Frequency hopping offers many advantages compared to the previously proposed optical CDMA multiple access techniques. The simultaneous utilization of the time and frequency domains offers notable flexibility in ...

متن کامل

Sampled Bragg gratings in chalcogenide (As(2)S(3)) rib-waveguides.

We have written a sampled Bragg grating into a highly photosensitive chalcogenide (As(2)S(3)) rib-waveguide using a scanning Sagnac interferometer. The grating exhibits evenly spaced rejection peaks over a 40 nm bandwidth. We estimate the induced refractive index change of the waveguide to be over 0.03 by matching the measured spectrum to numerical solutions of the coupled mode equations while ...

متن کامل

Multi-Stress Monitoring System with Fiber-Optic Mandrels and Fiber Bragg Grating Sensors in a Sagnac Loop

Fiber Bragg grating sensors are placed in a fiber-optic Sagnac loop to combine the grating temperature sensors and the fiber-optic mandrel acoustic emission sensors in single optical circuit. A wavelength-scanning fiber-optic laser is used as a common light source for both sensors. A fiber-optic attenuator is placed at a specific position in the Sagnac loop in order to separate buried Bragg wav...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998