Cosh-Gaussian pulse propagation in dispersion dominant regime of single mode fiber

2009 ◽  
Author(s):  
Nadeem Sarwar ◽  
M. Yousaf Hamza ◽  
S. Tariq
Keyword(s):  
Pulse Propagation ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Gaussian Pulse

scholarly journals IMPLEMENTATION OF OVERLAPPING SOLITON PAIR TO REDUCE TIME DELAY IN FEMTOSECOND PULSE PROPAGATION OVER SHORT STANDARD SINGLE MODE FIBER

2011 ◽  
Vol 25 (26) ◽  
pp. 2091-2098
Author(s):  
A. ESMAEILIAN-MARNANI ◽  
A. F. ABAS ◽  
M. A. MAHDI ◽  
K. SAMSUDIN
Keyword(s):  
Time Delay ◽  
Femtosecond Pulse ◽  
Pulse Propagation ◽  
Input Pulse ◽  
Single Mode ◽  
Propagation Characteristic ◽  
Single Mode Fiber ◽  
Average Amplitude ◽  
Soliton Pulse ◽  
Soliton Pair

Propagation of 50 femtosecond soliton pulse over short Standard Single Mode Fiber (SSMF) is reported by using soliton pair as the input pulse. The attraction of two solitons to propagate as one pulse is intended. The time deviation and average amplitude of propagating pulses are compared for several soliton orders and initial inter-pulse delays. It is discovered that by considering overlapping soliton pair as the input pulse, under special conditions, better propagation characteristic and lower time delay is experienced over short SSMF in comparison to the fundamental soliton.

scholarly journals Pulse Propagation in Presence of Polarization Mode Dispersion and Chromatic Dispersion in Single Mode Fibers

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Hassan Abid Yasser ◽  
Nizar Salim Shnan
Keyword(s):  
Pulse Propagation ◽  
Chromatic Dispersion ◽  
Polarization Mode Dispersion ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Polarization Mode ◽  
Shape Distortion ◽  
Mode Dispersion ◽  
Special Cases ◽  
Mathematical Relations

The presence of (first and second orders) polarization mode dispersion (PMD), chromatic dispersion, and initial chirp makes effects on the propagated pulses in single mode fiber. Nowadays, there is not an accurate mathematical formula that describes the pulse shape in the presence of these effects. In this work, a theoretical study is introduced to derive a generalized formula. This formula is exactly approached to mathematical relations used in their special cases. The presence of second-order PMD (SOPMD) will not affect the orthogonality property between the principal states of polarization. The simulation results explain that the interaction of the SOPMD components with the conventional effects (chromatic dispersion and chirp) will cause a broadening/narrowing and shape distortion. This changes depend on the specified values of SOPMD components as well as the present conventional parameters.

Performance and Reliability of a MEMS-based tunable optical filter operating in the 1565 nm-1525 nm wavelength range

2002 ◽  
Vol 722 ◽  
Author(s):  
T. S. Sriram ◽  
B. Strauss ◽  
S. Pappas ◽  
A. Baliga ◽  
A. Jean ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Line Width ◽  
Insertion Loss ◽  
Optical Filter ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Reliability Testing ◽  
Silicon Nitride Membrane ◽  
Tunable Optical Filter ◽  
Extensive Performance

AbstractThis paper describes the results of extensive performance and reliability characterization of a silicon-based surface micro-machined tunable optical filter. The device comprises a high-finesse Fabry-Perot etalon with one flat and one curved dielectric mirror. The curved mirror is mounted on an electrostatically actuated silicon nitride membrane tethered to the substrate using silicon nitride posts. A voltage applied to the membrane allows the device to be tuned by adjusting the length of the cavity. The device is coupled optically to an input and an output single mode fiber inside a hermetic package. Extensive performance characterization (over operating temperature range) was performed on the packaged device. Parameters characterized included tuning characteristics, insertion loss, filter line-width and side mode suppression ratio. Reliability testing was performed by subjecting the MEMS structure to a very large number of actuations at an elevated temperature both inside the package and on a test board. The MEMS structure was found to be extremely robust, running trillions of actuations without failures. Package level reliability testing conforming to Telcordia standards indicated that key device parameters including insertion loss, filter line-width and tuning characteristics did not change measurably over the duration of the test.

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