Biomedical Engineering Reference
In-Depth Information
50
120
CE/chiller
CE/chillerless
100
40
80
30
60
20
40
P/chiller
P/chillerless
10
20
Array-4180C-C_chip3_100906
150
0
0
0
50
100
(a)
Current (A)
60
50
40
30
20
Tn6-20C, PCE-46%
Tn6-50C, PCE-41%
Tn6-75C, PCE-33%
Tn6-85C, PCE-26%
10
0
0
10
20
30
40
50
60
(b)
Current (A)
FIGURE 2.49
(a) Performance of a 120 W VCSEL array with fan-radiator cooling. (b)
L
-
I
curves for a
QCW array at 808 nm at different temperatures. (Courtesy of Princeton Optronics [PO] and
Dr. Chuni Ghosh. With permission.)
temperatures, resulting in lower power consumption of the overall laser
system.
2.12.6 Single-Mode VCSEL Devices
PO makes single-mode devices with power levels of 5 mW for small-aperture
devices (4 μm) as well as higher power devices of power output of 150 mW
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