微型 BLM2-D系列-宽带双SLD光源模块是强大的和非常寛带宽的光源,它是基于两个有略微差别中心波长的SLD的结合构成。
这些稳定、可靠、低噪声的模块扩展了D-系列台式SLD宽带光源的生产线,容许容易地集成成客户系统,尤其是OEM的应用。微型BLM2-D系列是OCT和生物医学成像、布拉格光栅和其它种类光学传感以及要求宽光谱和非常短的相干长度的微型强光源模块的大量其它应用的理想光源。
内置微型双通道SLD电流和温度控制器容许由前面板按钮、外部TTL或经RS-232接口的PC接通或断开SLD。
虽然为了获得光谱宽度和输出功率的最好结合每个SLD的工作参数是预先设定的,但本公司可以根据要求提供一个密码钥匙容许经RS-232接口改变SLD的参数。
BLM2-D模块基板的特征是把安装设置纳入其中,从基板延伸。这些安装设置容许容易固定 BLM2-D光源模块到一个热沉上,获得最宽的可能的环境工作范围。不用热沉使用BLM2-D光源模块也是可能的,然而这将限定最大环境工作温度到+40°C。
这个技术说明描述了本公司提供的标准模块。无论如何,这个灵活的光源设计和大量一体化有效的不同的SLD模块容许设计大量定制的光源,包括双波长光源,其中具有不重叠光谱不同谱带的SLD被结合在一起。
特征:
• High optical power
• Very broad emission spectra
• Coherence length* of 4.5 μm or less (in air)
• Miniature design
• Stable, low noise optical output
• Built-in dual-channel current and temperature controller with a lot of built-in SLD protection features
• Manual and remote control capability; RS-232 and TTL analog control
• Operates from +5V DC supply
应用:
• Optical Coherence Tomography, including Ultra High Resolution OCT systems
• Fiber Optic Sensing
• Optical Metrology
• Testing of Optical Components
• Biomedical Imaging
• Low-Coherence Interferometry
*coherence length is defined as full width at half maximum of the coherence function plotted versus mirror displacement.
技术指标
Parameter |
Condition |
Min |
Typ |
Max |
Unit |
Storage temperature |
|
-20 |
- |
+80 |
oC |
Operating temperature |
BLM2-D mounted on a heatsink capable of dissipating up to15 W
|
0 |
- |
+551 |
oC |
Humidity, non-condensing |
|
- |
- |
90 |
% RH |
DC supply voltage |
|
4.76 |
5.00 |
5.25 |
V |
DC supply current2 |
|
2 |
- |
3.5 |
A |
DC supply ripples |
1 kHz…200 kHz frequency range |
- |
- |
20 |
mV |
“INTERNAL MODE SWITCH” input |
Pin 1 connector “Control” |
4 |
5 |
30 |
V |
“SLD ON/OFF” input |
Pin 2 connector “Control” |
4 |
5 |
30 |
V |
ALARM output |
Pin 3 connector “Control”; open collector |
- |
- |
150 |
mA |
1 Light source modules must be fixed onto an appropriate heatsink for getting a widest possible operating temperature range. However, it is also possible to use
BLM2-D without a heatsink, although in a limited range of ambient temperatures. The highest operating temperature without heatsinking is +40 °C in case of a free
air circulation around the package.
2 DC power supply should be capable to produce up to 3.5A. A less powerful power supply may be used, but it will limit the operating temperature range. It is not
allowed to use a power supply with a maximum current of less than 2.0 A.
光学参数
Device P/N |
BLM2-D-810-B-5 |
BLM2-D-840-B-10 |
BLM2-D-880-B-10 |
Parameter |
Min |
Typ |
Max |
Min |
Typ |
Max |
Min |
Typ |
Max |
Output optical power, mW |
5 |
7 |
- |
10 |
12 |
- |
8 |
10 |
- |
Center wavelength, nm |
800 |
810 |
820 |
830 |
840 |
850 |
870 |
880 |
890 |
Spectral bandwidth (FWHM), nm |
90 |
100 |
- |
90 |
100 |
- |
90 |
100 |
- |
Spectral Flatness, % |
- |
- |
45 |
- |
- |
45 |
- |
- |
30 |
Spectral ripple, % |
- |
2 |
5 |
- |
2 |
5 |
- |
2 |
5 |
|