scholarly journals Immunity to Laser Power Variation in a DFB Diode Laser Based Optical Gas Sensor Using a Division Process

Sensors ◽  
2015 ◽  
Vol 15 (4) ◽  
pp. 9582-9591 ◽  
Author(s):  
Hengtai Chang ◽  
Jun Chang ◽  
Qingjie Huang ◽  
Qiang Wang ◽  
Changbin Tian ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Diode Laser ◽  
Laser Power ◽  
Power Variation ◽  
Division Process ◽  
Optical Gas Sensor

Five-frame phase-shifting algorithm insensitive to diode laser power variation

2001 ◽  
Vol 197 (1-3) ◽  
pp. 37-42 ◽  
Author(s):  
M. Afifi ◽  
K. Nassim ◽  
S. Rachafi
Keyword(s):  
Diode Laser ◽  
Laser Power ◽  
Phase Shifting ◽  
Power Variation

Optical Gas Sensor Based on Gas Conjugated Interference Light Source

2015 ◽  
Vol 27 (14) ◽  
pp. 1550-1552 ◽  
Author(s):  
Zhengying Li ◽  
Xin Gui ◽  
Chenchen Hu ◽  
Lou Zheng ◽  
Honghai Wang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Light Source ◽  
Optical Gas Sensor

Transscleral Red Laser Cyclophotocoagulation for the Treatment of Therapy-Resistant Inflammatory Glaucoma

2007 ◽  
Vol 17 (4) ◽  
pp. 550-556 ◽  
Author(s):  
P.M. Puska ◽  
A.H.A. Tarkkanen
Keyword(s):  
Intraocular Pressure ◽  
Retrospective Study ◽  
Diode Laser ◽  
Laser Power ◽  
Application Time ◽  
Chronic Uveitis ◽  
Phthisis Bulbi ◽  
The Mean

Purpose To evaluate in a retrospective study the long-term usefulness of red 647 nm krypton and 670 nm diode laser for transscleral contact cyclophotocoagulation (CPC) in the treatment of therapy-resistant inflammatory glaucoma. Methods The authors treated 48 eyes of 38 consecutive patients (mean age 36.8 years, range 6–81 years) with therapy-resistant inflammatory glaucoma secondary to chronic uveitis (45/48), chronic scleritis (1/48), or combined scleritis with keratouveitis (2/48) using transscleral red 647 nm Krypton or 670 nm Diode laser. All eyes had failed maximum tolerated medical therapy and 19/48 (40%) eyes also previous antiglaucoma surgery. Laser power at the scleral surface was 0.35 to 0.45 W and the application time 10 seconds each. The follow-up was 42.8± 40.0 (range 2–145) months. Results The mean preoperative intraocular pressure (IOP) of 35.6±8.1 mmHg fell to 6–21 mmHg level in 75% after one or repeated CPC. Among adult patients this was achieved in 85%, among children in 54%. More than one treatment was needed in 52%. No cases of hypotony, phthisis bulbi, or other devastating complications occurred. Conclusions Transscleral CPC using red 647 nm krypton or 670 nm diode laser is an effective and well-tolerated procedure for the treatment of therapy-resistant inflammatory glaucoma in adults. CPC can be considered before incisional antiglaucoma surgery with a shunt or antimetabolites is undertaken

scholarly journals Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers

2012 ◽  
Vol 45 (10) ◽  
pp. 1297-1309 ◽  
Author(s):  
Renata Jarzebinska ◽  
Sergiy Korposh ◽  
Stephen James ◽  
William Batty ◽  
Ralph Tatam ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Optical Fibers ◽  
Self Assembly ◽  
Sensor Fabrication ◽  
Optical Gas Sensor
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