1854nm DM LASER
EP1854-DM-B
PRECISION MOISTURE DETECTION
Eblana Photonics EP1854-DM-B laser, available in a range from 1845 - 1920nm, is designed for highly sensitive H2O detection. Eblana's patented Discrete-Mode (DM) technology enables mode-hop free tuning and excellent SMSR, while at the same time maintaining cost effectiveness.
ELECTRO-OPTICAL CHARACTERISTICS* (TSUB = 25◦ C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Available Wavelength Range
λ
1850
1854
1915
nm
Wavelength Tolerance
λspec
λ -1
λ
λ
+1 nm
Side Mode Supression Ratio
SMSR
30
40
-
dB
Threshold Current
Ith
-
25
35
mA
Output Power in fiber
Pf
2
3
-
mW
Optical linewidth
∆f
-
-
2
MHz
Temperature Tuning Coefficient
Tλ
0.07
0.1
-
nm/◦C
Current Tuning Coefficient
Iλ
5
10
-
pm/mA
Slope Efficiency
SE
0.03
0.05
-
mW/mA
Thermistor Resistance
RT
9.5
10
10.5
kΩ
Thermistor Temp. Coefficient
C
-
-4.4
-
%/◦C
∗CW bias unless otherwise stated
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Forward Current
If
-
-
140
mA
Forward Voltage
Vf
-
1.3
1.6
V
TEC Current
ITEC
-
-
1
A
Reverse Voltage LD
Vr
-
-
2.0
V
Case Temperature∗
TCase
-20
-
65
◦C
Chip Submount Temperature
TSub
0
-
50
◦C
Storage Temperature
Tstorage
-40
-
85
◦C
∗For Tsub < 25◦C, Max Case Temperature should be derated to TCase,Max =Tsub + 40◦C
PACKAGING
The EP1854-DM-B product series is offered in a 14-pin Butterfly package - Inquire for other packaging options. The standard package pinout is shown below, variations may be requested. mPD not included as standard.
商品属性 [波长] 1854nm,1877nm,1850nm [封装方式] 14-Pin Butterfly, TO39,DX-1 Module [功率] 3mW