Product Name: mid-infrared QCL lasers Product Description: ADTech production quantum cascade lasers (quantum cascade laser diode), the wavelength coverage in the far infrared (4-12um). Singlemode and multimode products, some of the wavelengths can provide high power (500mW output power). C-Mount and refrigeration chip module package. The products are widely used in national defense, detection, medical and environmental monitoring. ADTech production of mid-infrared lasers having a pulse and continuous mode, the product having a relatively high wavelength of the current-dependent or temperature-wavelength dependency. Within the working current (or temperature) of about 50nm or greater tuning range. The product is very suitable for the monitoring of gases and substances. The product has a very low threshold current and a very high efficiency. QCL lasers are ideally suited to produce the 3.5-25um far infrared laser spectroscopy, come in also be used to generate THz light source. QCL and the PN junction of the conventional semiconductor laser, while the use of the reaction zone of the multilayer (cascade), so that each incident electron emitting a plurality of photons, thus increasing the gain of the laser. Each reaction zone is a carefully designed multilayer structure of semiconductor material for electronic material control the release of a specific wavelength and in the nanometer thickness. Product applications: monitoring of harmful substances high precision gas detection infrared spectroscopy study product features: 4-12um wavelength laser with a higher current wavelength dependence (pulse work with very low the current wavelength dependent) products provide a C-mount , CS-mount, as well as a typical output power with refrigeration and sealed HHL package for the 100mW WaveNumber Wavelength (μm) WaveNumber Wavelength (μm) WaveNumber Wavelength (μm) 2249 - 2246 4.44 - 4.45 1917 - 5.21 1914 - 5.22 1386 - 1382 7.21 - 7.23 2234 - 2230 4.47 - 4.48 1895 - 1891 5.27 - 5.28 1321-1317 7.57 - 7.59 2225 - 2221 4.49 - 4.50 1890 - 1886 5.29 - 5.30 1299 - 1295 7.69 - 7.72 2219 - 2214 4.50 - 4.51 1696 - 1693 5.89 - 5.90 1290 - 1286 7.75 - 7.77 2210 - 2205 4.52 - 4.53 1687 - 1684 5.92 - 5.93 1269 - 1265 7.88 - 7.90 2204 - 2200 4.53 - 4.54 1662 - 1661 6.01 - 6.02 1108 9.2 2195 - 2192 4.55 - 4.56 1661 - 1658 6.02 - 6.03 1104 - 1102 9.05 - 9.07 2192 - 2187 4.56 - 4.57 1655 - 1651 6.04 - 6.05 1074 - 1072 9.31 - 9.32 2184 - 2182 4.57 - 4.58 1638-1634 6.10 - 6.11 1071 - 1070 9.33 - 9.34 2181 - 2178 4.58 - 4.59 1398 - 1395 - 7.16 1059 - 1056 9.44 - 9.46 1951 - 5.12 1948 - 5.13 1394 - 7.17 1390 - 7.19 1056 - 1054 9.46 - 9.48 1940 - 5.15 1936 - 5.16 1391 - 1386 7.18 - 7.21 1053 - 1050 9.49 - 9.52 1928 - 1926 5.18 7.15 - 5.19 1387 - 1384 7.20 - 7.22