Improved gain characteristics in high-concentration Er/sup 3+//Yb/sup 3+/ codoped glass waveguide amplifiers

1994 ◽  
Vol 30 (9) ◽  
pp. 2127-2131 ◽  
Author(s):  
F. Di Pasquale ◽  
M. Federighi
Keyword(s):  
High Concentration ◽  
Waveguide Amplifiers ◽  
Glass Waveguide

Evaluation of Optical Path Designing on 4x4 Cm2 Er3+/Yb3+ Doped Phosphate Glass Waveguide Substrate

2011 ◽  
Vol 295-297 ◽  
pp. 1240-1243
Author(s):  
Miao Tian ◽  
Xin Zhao ◽  
Zheng Yang Zhou ◽  
Hai Lin
Keyword(s):  
Phosphate Glass ◽  
High Gain ◽  
High Signal ◽  
Gain Enhancement ◽  
Waveguide Amplifiers ◽  
Glass Waveguides ◽  
Integrated Devices ◽  
Bend Waveguide ◽  
Glass Waveguide ◽  
Channel Structures

To achieve high-gain C-band waveguide amplifiers with integrated configuration, bent channel structures (S-, U-, and F-bend) based on buried Er3+/Yb3+ codoped phosphate glass waveguide channel fabricated by field-assisted annealing (FAA) have been designed in a 4´4 cm2 substrate. Using simulated-bend method, the optimal radius for the curved structure is derived to be 1.00 cm with loss coefficient of 0.0045 dB/cm. In the wavelength range of 1520-1575 nm, obvious gain enhancement for the bent structure waveguides is anticipated, and for the F-bend waveguide, the net gain at 1534 nm wavelength is derived to be 43.95 dB, which is much higher than the value of 26.67 and 13.20 dB in the U- and S-bend waveguides, respectively, and over three times higher than that of the straight one. The simulation results indicate that the bent structure designing is beneficial in obtaining high signal gain in buried Er3+/Yb3+ codoped phosphate glass waveguides, which lays the foundation for the further design and fabrication of integrated devices.

Gain characteristics of a high concentration Er3+‐doped phosphate glass waveguide

1995 ◽  
Vol 78 (6) ◽  
pp. 3617-3621 ◽  
Author(s):  
T. Ohtsuki ◽  
N. Peyghambarian ◽  
S. Honkanen ◽  
S. I. Najafi
Keyword(s):  
Phosphate Glass ◽  
High Concentration ◽  
Glass Waveguide

EFFECT OF TRANSMISSION FUNCTION OF CASCADED MULTILAYER MEDIUM THIN FILM FILTER ON Er–Yb CO-DOPED WAVEGUIDE AMPLIFIERS

2011 ◽  
Vol 25 (17) ◽  
pp. 2371-2377 ◽  
Author(s):  
HAIYAN CHEN
Keyword(s):  
Thin Film ◽  
Transmission Function ◽  
Central Wavelength ◽  
Multilayer Medium ◽  
Waveguide Amplifiers ◽  
Unit Cells ◽  
Thin Film Filter ◽  
Glass Waveguide ◽  
Co Doped ◽  
Peak Gain

Modeling and amplification of erbium–ytterbium co-doped phosphate glass waveguide amplifier with a cascaded multilayer medium thin film filter is investigated theoretically. This proposed filter consists of some different filtering unit cells with different central wavelength and bandwidth, and each cell can suppress certain peak gain at a specific wavelength. The intrinsical gain spectrum of amplifier is obtained by solving a set of rate and power propagation equations, the effect of transmittance spectrum of thin film filter on flattening gain is discussed, and the transmission function of cascaded multilayer medium thin film filter is obtained.

Gain characteristics of a high-concentration Er3+ doped phosphate glass waveguide

1995 ◽  
Author(s):  
Tomoko Ohtsuki ◽  
Seppo Honkanen ◽  
C.-Y. Li ◽  
S. Iraj Najafi ◽  
Richard C. Powell ◽  
...  
Keyword(s):  
Phosphate Glass ◽  
High Concentration ◽  
Glass Waveguide

Ion-exchanged Er/Yb phosphate glass waveguide amplifiers and lasers

1998 ◽  
Author(s):  
Alireza Shooshtari ◽  
P. Meshkinfam ◽  
Tahar Touam ◽  
Mark P. Andrews ◽  
S. Iraj Najafi
Keyword(s):  
Phosphate Glass ◽  
Waveguide Amplifiers ◽  
Glass Waveguide
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