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首頁產品展示高速集成接收機 > 2x8相干混頻器(8端口Single-ended PD輸出)
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  • 產品名稱: 2x8相干混頻器(8端口Single-ended PD輸出)
  • 產品編號: 030
  • 發布時間: 2016-10-26
  • 瀏覽次數: 277

 

頁面定義了一款專門應用于客戶特殊要求的8端口single-ended PD輸出的相干接收機。

Optoplex的相干混合器,由兩個多偏正態的 90度光學混頻器組成,一個偏振分束器和一個分束器,與現有DP-QPSK相干混合器一樣,因此具有相同的光學性能。

圖 1, Optoplex現有的2x8 DP-QPSK 相干接收機

為實現所需的配置、功能和性能,現有的相干混頻器設計使用了8端口single-ended PD輸出用于替代8端口準直輸出。

圖 2, 設計的 2x8相干接收機 ( 8 single-ended PD 輸出)

圖 3,相干接收機原理框圖(8端口 single-ended PD 輸出)

這 8個single-ended PD端口相互間是完全獨立的– each one 每一個端口都有獨立的分離接地控制,為用戶提供靈活的獨立監視和控制。

 

·基于 90度光學混頻器的自由空間微光學。

·精準的 90度相位偏差, 極小的溫度波長偏振影響。

·優越的光學性能 (IL, TDL, PDL, Skew,等.)

·低暗電流

·高CMRR

·High PER

 

·相干多普勒雷達系統。

·相干光纖傳感檢測

· 在OCT以及其他生物醫學傳感/成像系統的相干檢測。

·相干光譜分析儀器

·光通信的相干檢測

 

Parameter

Min

Typ.

Max

Unit

Conditions

Operating Wavelength Range

1525

 

1568

nm

C-Band

Tributary path delay

-

 

20

ps

Maximum skew between any path (XI, XQ, YI and YQ), Note 1

Tributary path delay variation

 

 

5

ps

Skew variation over operating conditions and aging

P/N path delay imbalance

-

 

2

ps

Between balanced pairs, over operating conditions and aging

Phase angle error

-5

 

+5

degree

Deviation from 90° angle between I and Q

Polarization extinction ratio

20

 

 

dB

To be measured over photocurrents

Optical return loss

27

 

 

dB

Each input

Responsivity of individual tributaries2

45

 

 

mA/W

 

Responsivity variation of individual tributaries over temperature

 

 

1.0

dB

Over operating case temperature range

P/N Responsivity imbalance3

 

 

0.85

dB

For Signal and LO path

Responsivity imbalance between tributaries 4

 

 

1.0

dB

 

 

Notes:

1.Overall delay between signal input or LO input and the respective electrical output. TIA gain set to medium gain. Use a heterodyne measurement setup. Sweep the beat frequency from 0.1 – 10 GHz and derive the phase response between any path (XI, XQ, YI, and YQ).

2.This is the worst case responsivity of one individual tributary from LO or Signal input, to one of four outputs, thus including inherent and excess loss. The responsivity is to be averaged over the P and N components of each tributary. To measure the average responsivity of the Signal path, a polarization scrambled signal shall be used.

3.Imbalance between P/N pair of one tributary for Signal and LO path. The imbalance is related to CMRR_DC. The definition of CMRR_DC is:

4.Imbalance between XI, XQ, YI, YQ channels, for signal and LO path. The individual tributary’s P/N responsivity has to be averaged.

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