Raman amplification at 800 nm in single-mode fiber for biological sensing and imaging

2010 ◽  
Author(s):  
Ata Mahjoubfar ◽  
Keisuke Goda ◽  
Bahram Jalali
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Biological Sensing ◽  
Raman Amplification

Transmission of 10Gb/s WDM signals over 4000 km of standard single-mode fiber with 106 km spans using all-Raman amplification and NRZ format

2005 ◽  
Author(s):  
Zhangyuan Chen ◽  
Guangquan Wang ◽  
Hong Cen ◽  
Juhao Li ◽  
Lei Zheng ◽  
...  
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Raman Amplification

scholarly journals Hybrid EDFA/Raman Amplification Topology for Repeaterless 4.48 Tb/s (40 x 112 Gb/s DP-QPSK) Transmission Over 302 Km of G.652 Standard Single Mode Fiber

2013 ◽  
Vol 31 (16) ◽  
pp. 2799-2808 ◽  
Author(s):  
Juliano Rodrigues Fernandes de Oliveira ◽  
Uiara Celine de Moura ◽  
Getulio Eduardo Rodrigues de Paiva ◽  
Alexandre Passos de Freitas ◽  
Luis Henrique Hecker de Carvalho ◽  
...  
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Raman Amplification

scholarly journals Unrepeatered 240-km 64-QAM Transmission Using Distributed Raman Amplification over SMF Fiber

2020 ◽  
Vol 10 (4) ◽  
pp. 1433
Author(s):  
P. Rosa ◽  
G. Rizzelli ◽  
X. Pang ◽  
O. Ozolins ◽  
A. Udalcovs ◽  
...  
Keyword(s):  
Digital Signal Processor ◽  
Back Propagation ◽  
Digital Signal ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Raman Amplification ◽  
Raman Fiber Laser ◽  
Modulation Format ◽  
Transmission Distance ◽  
Nonlinear Compensation

We present a theoretical and experimental investigation of unrepeatered transmission over standard single-mode fiber (SMF-28) using several schemes of distributed Raman amplification, including first, second, and dual order. In order to further extend the transmission distance, we utilize advanced bidirectional higher-order ultra-long Raman fiber laser-based amplification, where we use fiber Bragg gratings (FBGs) to reflect Stokes-shifted light from the secondary pumps. Our work demonstrates the possibility of transmission up to 240-km span length with a total span loss of 52.7 dB. Here, we use a 28-Gbaud signal using a 64-quadrature amplitude modulation (QAM) modulation format. Our results highlight the contribution of nonlinear compensation using digital back propagation in a digital signal processor (DSP) code at the receiver.

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.

Anti-dark solitons in a single mode fiber laser

2021 ◽  
Vol 395 ◽  
pp. 127226
Author(s):  
Jun Guo ◽  
Xiao Hu ◽  
Jie Ma ◽  
Luming Zhao ◽  
Deyuan Shen ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Dark Solitons
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