Photo-acoustic sensor based on an inexpensive piezoelectric film transducer and an amplitude-stabilized single-mode external cavity diode laser for in vitro measurements of glucose concentration

2018 ◽  
Vol 102 ◽  
pp. 180-183 ◽  
Author(s):  
Ismail Bayrakli ◽  
Yasar Kemal Erdogan
Keyword(s):  
Diode Laser ◽  
Glucose Concentration ◽  
External Cavity ◽  
Single Mode ◽  
External Cavity Diode Laser ◽  
Piezoelectric Film ◽  
Acoustic Sensor ◽  
In Vitro Measurements ◽  
Film Transducer

Miniaturized Tunable External Cavity Diode Laser with Single-Mode Operation and a Narrow Linewidth at 633 nm

2011 ◽  
Vol 23 (22) ◽  
pp. 1676-1678 ◽  
Author(s):  
Ahmad Ibrahim Bawamia ◽  
Gunnar Blume ◽  
Bernd Eppich ◽  
Arnim Ginolas ◽  
Stefan Spießerger ◽  
...  
Keyword(s):  
Diode Laser ◽  
External Cavity ◽  
Single Mode ◽  
External Cavity Diode Laser ◽  
Narrow Linewidth ◽  
Single Mode Operation ◽  
Mode Operation

The Effects of Temperature, Injection Current and Optical Feedback on the Frequency Stabilization of External Cavity Diode Laser

2014 ◽  
Vol 979 ◽  
pp. 459-462
Author(s):  
N. Srisuai ◽  
N. Chattrapiban ◽  
W. Rakreungdet
Keyword(s):  
Diode Laser ◽  
Laser Cooling ◽  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Laser Frequency ◽  
Injection Current ◽  
External Cavity Diode Laser ◽  
High Resolution Spectroscopy ◽  
Single Mode Laser

A frequency-stabilized diode laser is widely used for applications in laser cooling and high-resolution spectroscopy. In this work, the 780-nm external cavity diode laser was constructed and subsequently frequency-controlled by three parameters, i.e., temperature, injection current and optical feedback. The laser frequency was measured with respect to the 5S1/2 → 5P3/2 (D2-lines) transition of Rubidium, while the laser mode was characterized by a Fabry-Perot interferometer. The laser temperature was passively controlled to a single value between 20 ̊C and 25 ̊C while the injection current was investigated in combination with course and fine adjustments of optical feedback. Only data relevant to a single-mode laser operation was collected. It was found that as the current increased, the laser frequency shifted linearly with slopes approximately 0.5-0.8 GHz/mA. Optical feedback from the external cavity was tuned by the voltage applied to the piezoelectric transducer, yielding a linear frequency response of approximately 0.2 GHz/V. The measured parameters were rearranged to represent the island of stability of the laser, suggesting suitable conditions that yielded single-mode operation, at a desirable laser frequency. The results were important for a design of an active feedback, in order to further reduce the frequency linewidth and intensity noise of the laser.

scholarly journals Mode-locked Raman laser in H_2 pumped by a mode-locked external-cavity diode laser

2007 ◽  
Vol 24 (11) ◽  
pp. 2893
Author(s):  
Yihan Xiong ◽  
Sytil Murphy ◽  
Paul Nachman ◽  
Kevin S. Repasky ◽  
J. L. Carlsten
Keyword(s):  
Diode Laser ◽  
External Cavity ◽  
Raman Laser ◽  
External Cavity Diode Laser

400  mW external cavity diode laser with narrowband emission at 445  nm

2014 ◽  
Vol 39 (13) ◽  
pp. 3794 ◽  
Author(s):  
N. Ruhnke ◽  
A. Müller ◽  
B. Eppich ◽  
M. Maiwald ◽  
B. Sumpf ◽  
...  
Keyword(s):  
Diode Laser ◽  
External Cavity ◽  
External Cavity Diode Laser

scholarly journals An external cavity diode laser sensor

1983 ◽  
Vol 1 (1) ◽  
pp. 81-93 ◽  
Author(s):  
R. Miles ◽  
A. Dandridge ◽  
A. Tveten ◽  
T. Giallorenzi
Keyword(s):  
Diode Laser ◽  
External Cavity ◽  
External Cavity Diode Laser ◽  
Laser Sensor ◽  
Diode Laser Sensor
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