技術(shù)參數(shù)
1x1,1x2光開關(guān)技術(shù)指標(biāo)
| NS系列 1X1光開關(guān)/調(diào)制器 | 小值 | 典型值 | 大值 | 單位 |
| 工作波長(zhǎng) | 780 | | 1800 | |
| 插入損耗 | 1260-1800nm | | 0.6 | 1.0 | dB |
| 960-1260nm | | 0.8 | 1.3 |
| 760-960nm | | 1.0 | 1.5 |
| 隔離度 | 20 | 25 | | dB |
| 偏振相關(guān)損耗 | | 0.15 | 0.35 | dB |
| 插入損耗溫度相關(guān)性 | | 0.25 | 0.5 | dB |
| 偏振模式色散 | | 0.1 | 0.3 | ps |
| 回波損耗 | 45 | 50 | | dB |
| 響應(yīng)速度（上升沿，下降沿） | | | 300 | ns |
| 重復(fù)頻率 | DC | 2k | | Hz |
| 工作溫度 | -5 | | 70 | ℃ |
| 光功率限制 | | 300 | 500 | mW |
| 儲(chǔ)存溫度 | -40 | | 85 | ℃ |
| 封裝尺寸 | | 57.5x7.35x9.7 | | mm |
典型響應(yīng)速度測(cè)量
典型帶寬測(cè)量
光路驅(qū)動(dòng)表
| Optical Path | TTL Signal |
| ON for normal-open or OFF for normal-dark | L (< 0.8V) |
| OFF for normal-open or ON for normal-dark | H ( > 3.5V) |
驅(qū)動(dòng)電路板
| Maximum Repetition Rate | Part Number (P/N) |
| 5kHz | SWDR-11a251111 |
| 100kHz | SWDR-11a261111 |
| 500kHz | SWDR-11a291111 |
備注: 對(duì)于自己設(shè)計(jì)其驅(qū)動(dòng)電路的客戶，他們負(fù)責(zé)光學(xué)性能。有關(guān)更多技術(shù)信息，請(qǐng)與我們聯(lián)系。
筱曉光子 1064nm電光開關(guān)使用說明
視頻演示
1. 將光開關(guān)模塊上電，散熱系統(tǒng)開始工作；
2. 將1064nm激光從光開關(guān)的輸入端接入，此時(shí)可以觀測(cè)到正向輸出端不通光，反向輸出端通光；
3. 光開關(guān)模塊中有一SMA輸入端口，為開關(guān)調(diào)制信號(hào)的輸入端，識(shí)別TTL電平。輸入低電平時(shí)，光從反向端口輸出，輸入高電平時(shí)，光從正向端口輸出。將其與信號(hào)源連接，輸入脈沖信號(hào)，以視頻中的信號(hào)為例：頻率2MHz、高電平1.6V（輸出阻抗50歐）、低電平0V、脈寬100ns；
4. 在正向輸出端連接PD采集脈沖光信號(hào)，與信號(hào)源的信號(hào)比較。反向輸出端則會(huì)得到反相結(jié)果；
訂購(gòu)信息
| □□□□ | 1 1 | □ | □ | □ | □ | □ | □ |
| | Type | Wavelength [1] | Configuration | Fiber Type | Fiber Length | Connector [2] |
| NSSW=Normal Power | 1x1=11 | 1060nm=1 | Normally open /Single Stage= 11 Normally Opaque/Single Stage=21 Normally open/Dual Stage= 12 Normally Opaque/Dual Stage=22 | SMF-28=1 | Bare Fiber=1 | 0.25m=1 | None=1 |
| NHSW=2 W | | 2000nm = 2 | HI1060=2 | 900um Tube=3 | 0.5m=2 | FC/PC=2 |
| NHHW=5W | | 1310nm=3 | HI780=3 | Special=0 | 1.0 m=3 | FC/APC= 3 |
| | | 1410nm=4 | PM1550=5 | | Special=0 | SC/PC=4 |
| | | 1550nm=5 | PM980=9 | | | SC/APC=5 |
| | | 1625nm=6 | | Special=0 | | | ST/PC=6 |
| | | 850nm=8 | | | | | LC/PC=7 |
| | | 780nm=7 | | | | Duplex LC=8 |
| | | 650=E | | | | LC/APC=9 |
| | | 550=F | | | | Special=0 |
| | | 400=G | | | | |
| | | Special=0 | | | | |
常見問題解答：
Q: Does NS device drift over time and temperature?
A: NS devices are based on electro-optical crystal materials that can be influenced to a certain range by the environmental variations. The insertion loss of the device is only affected by the thermal expansion induced miss-alignment. For extended temperature operation, we offer special packaging to -40 -100 0C. The extinction or cross-talk value is affected by many EO material characters, including temperature-dependent birefringence, Vp, temperature gradient, optical power, at resonance points (electronic). However, the devices are designed to meet the minimum extinction/cross- talk stated on the spec sheets. It is important to avoid a temperature gradient along the device length.
Q: What is the actual applying voltage on the device?
A: 100 to 400V depending on the version.
Q: How does the device work?
A: NS devices are not based on Mach-Zander Interference, rather birefringence crystal’s nature beam displacement, in which the crystal creates two different paths for beams with different polarization orientations.
Q: What is the limitation for faster operation?
A: NS devces have been tested to have an optical response of about 300 ps. However, practical implementation limits the response speeds. It is possible to achieve a much faster response when operated at partial extinction value. We also offer resonance devices over 20MHz with low electrical power consumption.
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