Results 111 to 120 of about 451 (139)
Some of the next articles are maybe not open access.
Thulium-doped fiber laser using two FOLMs with a high birefringence fiber in the loop
SPIE Proceedings, 2017We report a linear cavity all-fiber Thulium-doped fiber (TDF) laser with tunable narrow linewidth operating near to 2 μm of wavelength. The TDF is pumped with a laser source at 1567 nm. The cavity is delimited by two fiber optical loop mirrors (FOLM) with high birefringence fiber in the loop (Hi-Bi FOLM) with different periodical wavelength-dependent ...
M. Durán Sánchez +6 more
openaire +1 more source
OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001
A flexible method based on a high-birefringence fiber loop mirror is proposed for the gain flattening of an erbium-doped fiber amplifier. The gain profile was flattened to within /spl plusmn/0.9 dB over a 33 nm bandwidth.
Shenping Li +2 more
openaire +1 more source
A flexible method based on a high-birefringence fiber loop mirror is proposed for the gain flattening of an erbium-doped fiber amplifier. The gain profile was flattened to within /spl plusmn/0.9 dB over a 33 nm bandwidth.
Shenping Li +2 more
openaire +1 more source
SPIE Proceedings, 2010
A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain.
Jie Shi +4 more
openaire +1 more source
A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain.
Jie Shi +4 more
openaire +1 more source
Birefringent Fiber Loop to Improve Directly Modulated Laser Diode Pulses
2005 Pacific Rim Conference on Lasers & Electro-Optics, 2006We describe the use of a birefringent-fiber-loop (BFL) to improve the signal from a 10Gb/s directly modulated DFB laser. The BFL reduces amplitude transients, frequency chirp and pattern dependence in the directly modulated signal.
C.W. Chow, H.K. Tsang
openaire +1 more source
Sensitivity of PANDA high-birefringence fiber loop mirror with temperature sensing
SPIE Proceedings, 2010With surrounding temperature changing, the shifting characteristics of the filtered spectrum of Panda high birefringence loop mirror are researched, according to the birefringence laws of Panda high-birefringence fiber and filter properties of the high-birefringence fiber loop mirror. Its sensitivity coefficient is up to 1.4219×10 -9 m/°C.
Ling Zhou, Li Wang, Shuyang Hu
openaire +1 more source
Application of high birefringence fiber Sagnac loop mirror in temperature sensing
SPIE Proceedings, 2007Experiments using high birefringence fiber Sagnac loop mirror as the temperature sensor are reported. We study the characteristics of this sensor based on intensity detection. The result is linear in the measurable range. The sensing sensitivities of temperature is 0.92nm/°C, which is nearly 89 times larger than the typical temperature sensitivities ...
Bo Liu +3 more
openaire +1 more source
A novel high-birefringence fiber loop mirror electric current sensor
SPIE Proceedings, 2007A novel electric current sensor based on a high-birefringence fiber loop mirror(HBFLM) and a kind of magnetostrictive material rod(MMR) is demonstrated theoretically and experimentally. Part of the high-birefringence fiber(HBF) is pasted onto the MMR which is placed in the central part of a solenoid.
Dong Bo +6 more
openaire +1 more source
A novel density sensor based on high-birefringence fiber loop mirror
SPIE Proceedings, 2013In this paper, a novel density sensor based on high-birefringence fiber loop mirror is proposed and studied. The high-birefringence fiber is pasted to a ring shaped rubber gasbag and placed in the liquid. Fasten the gasbag to the bottom of the container. When the density of liquid is changed, the liquid level keeps the same.
Dongmei Bai +3 more
openaire +1 more source
Frontiers in Optics, 2003
We describe the nonlinear optical loop mirror with a symmetrical coupler, a quarter-wave retarder, and highly twisted, low-birefringence fiber in the loop. We give a useful way to visualize the behavior (as a function of birefringence, twist, length, and input polarization) in terms of the Poincare sphere.
B. Ibarra Escamilla +5 more
openaire +1 more source
We describe the nonlinear optical loop mirror with a symmetrical coupler, a quarter-wave retarder, and highly twisted, low-birefringence fiber in the loop. We give a useful way to visualize the behavior (as a function of birefringence, twist, length, and input polarization) in terms of the Poincare sphere.
B. Ibarra Escamilla +5 more
openaire +1 more source
Optics Communications, 2006
Abstract The dynamics of a nonlinear optical loop mirror (NOLM) with feedback using a high birefringence fiber in the loop are investigated. The effect of rotating input polarization angle on the output power and polarization angle is numerically examined, illustrating the sensitivity of the NOLM with feedback to the input’s polarization state, as ...
C.A. Merchant, A.L. Steele
openaire +1 more source
Abstract The dynamics of a nonlinear optical loop mirror (NOLM) with feedback using a high birefringence fiber in the loop are investigated. The effect of rotating input polarization angle on the output power and polarization angle is numerically examined, illustrating the sensitivity of the NOLM with feedback to the input’s polarization state, as ...
C.A. Merchant, A.L. Steele
openaire +1 more source