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HIGHLIGHTS

  • 全面的偏振穩定和控制功能
  • 快速切換功能
  • 如搭配使用光通訊應用軟體套件，可執行單次掃瞄頻譜 PDL 量測
  • 1240 nm 至 1650 nm 的波長運作範圍
  • 堅固耐用，沒有活動的光學零件

Keysight N7786C 內建一個高速鈮酸鋰偏振控制器，以及一個用於監測輸出信號並提供反饋給控制器的偏振分析儀。它能以不同模式運作：

  • 偏振穩定器模式：即使在輸入偏振態（SOP）發生波動或漂移時，也能提供穩定的輸出 SOP。趨穩的輸出信號可在標準的單模光纜（SMF）中傳導。輸出 SOP 可透過下列幾種方式定義：
    - 在操作介面中啟動 “設定後不理（set-and-forget）“ 切換模式後，儀器會儲存目前的 SOP 並維持不變，而且不受儀器輸入信號之偏振變化的影響。
    - Stokes 參數定義：使用者可利用 Stokes 參數來定義目標輸出 SOP，然後透過偏振分析儀的反饋來設定參數
    - 序列定義：此儀器可使用選定的碼型，對輸出信號的 SOP 進行切換，循環速度高達 100 kSOPs/s
  • SOP 切換器模式：N7786C 能以超過 40 kHz 的選定速度，循環切換 SOP 序列。SOP 序列的內部設定，首先由穩定器功能決定，以進行快速的直接切換。每次進行 SOP 切換僅耗時幾微秒。您可透過電子觸發輸入，讓加擾器與外部事件維持同步
  • 傳統加擾器模式：Keysight N7786C 可隨機改變輸出 SOP，數微秒即可覆蓋整個 Poincaré 球
  • 偏振分析儀模式：可提供真正的高速效能，以每秒高達 100 萬點的取樣率，擷取 100 萬個取樣點
  • 高速切換偏振控制器模式：如與光通訊應用軟體套件（PAS）搭配使用，可進行單次掃瞄波長相依的偏振相關損耗（PDL）量測。如需更多資訊，請詳閱 PAS 文件：www.keysight.com/find/n7700

內建的操作介面支援許多的 N7786C 應用軟體。使用一套新的可編程儀器（SCPI）指令編寫程式，而且此儀器可當作 VISA 資源。
儀器外形輕巧，僅一個機架高，配備 LAN 和 USB 介面。

主要技術規格

下載產品規格書
應用
Swept-wavelength PDL measurement
Polarization alignment with device axes
Maximize contrast ratio in Interferometry
Polarization analysis
DOP Meas. Uncertainty
± 2.%; ± 1.5% typical
Functionality
Polarization synthesizer
Input power range
-38 dBm to +19 dBm
Insertion Loss Choice
<5.0 dB
Mainframe Compatibility
Standalone
應用
DOP Meas. Uncertainty
Functionality
Input power range
Insertion Loss Choice
Mainframe Compatibility
Swept-wavelength PDL measurement
Polarization alignment with device axes
Maximize contrast ratio in Interferometry
Polarization analysis
± 2.%; ± 1.5% typical
Polarization synthesizer
-38 dBm to +19 dBm
<5.0 dB
Standalone
查看更多
應用:
Swept-wavelength PDL measurement
Polarization alignment with device axes
Maximize contrast ratio in Interferometry
Polarization analysis
DOP Meas. Uncertainty:
± 2.%; ± 1.5% typical
Functionality:
Polarization synthesizer
Input power range:
-38 dBm to +19 dBm
Insertion Loss Choice:
<5.0 dB
Mainframe Compatibility:
Standalone
Number of channels:
1
PDL:
< 0.2 dB typical at 1550 nm
SOP Cycling Time:
< 10 µs
SOP Meas. Uncertainty:
1.5° typical
Sensor type:
N/A
類型:
Optical Polarization Solution
Uncertainty at ref. cond.:
Typical ± 1.5%
Wavelength range:
1240 nm to 1650 nm

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