Silica Optical Fiber Technology for Device and Components. Design, Fabrication, and International Standards. Wiley Series in Microwave and Optical Engineering
- Language: English
- 472 Pages
- Published: March 2012
- Region: Global
This product is currently not available for purchase.
Pulling bulk crystal into fiber is suitable for
dvice applications in optical communications because
of its structural similarity to silica fiber. Among
fiber growth techniques, the laser-heated pedestal
growth method (LHPG) was adopted. It is crucible
free and can therefore produce high-quality single
crystals. However, interface loss of the fiber is
one of the main causes of optical loss. In order to
reduce the loss, a proper method to clad the fiber
is important for high performance device. For laser
application, high-efficient Nd:YAG lasers were
demonstrated using gradient-index crystal fibers.
For ASE and optical amplifier applications, Cr4+:YAG
crystal fiber was studied due to its fluorescence
just covering the low loss window of optical fiber.
To reduce the fiber diameter and propagation loss, a
novel cladding technique, codrawing LHPG, was
developed. A double-clad fiber was successfully
grown by the technique. As much as 2.36 mW of ASE
with a bandwidth of 265 nm was demonstrated. Up to
16-dB of gross gain at 1470 nm was also achieved. It
is the first transition metal-doped fiber amplifier
in the optical communication band.
Chia-Yao Lo received his Ph.D. in electro-optical engineering
from National Sun Yat-sen University. He is currently an
assistant professor in the Institute of Optoelectronic Sciences
at National Taiwan Ocean University.