Phoenix Couplers

All Fiber Variable Waveplate	Polarization Scanner
Polarization Switch	Polarization Controller

All-Fiber Variable Waveplate

_FEATURES	_APPLICATIONS
____• All-fiber	____• Polarization control
____• Simple current control	____• State of polarization scanning
____• Full cycle of Poincare sphere	____• Component testing
____• Low return loss	____• Sensor systems
____• High return loss	____• Optical fiber polarimetry

Phoenix Photonics variable waveplate is a compact, simple to operate, all-fiber device for wideband operation. Applying a current to the pins gives a controlled modification of the linear birefringence within the device. The input state of polarization can be changed through a full cycle of the Poincare sphere. Two options are available giving flexibility for different applications.

Option 1 - Single mode (SM) fiber input and output:

This version provides a complete cycle of the Poincare sphere to be achieved, the range of polarization states generated in the output fiber is dependent on the input SOP.

Option 2 - Polarization maintaining (PM) fiber input and output:

This option includes an integrated fiber polarizer in front of the waveplate aligned to the slow axis of the input fiber. The role of the polarizer is to ‘clean’ the linear input state. The output is a PM fiber, in this case the output polarization state will give a full cycle of the great circle on the Poincare sphere. The output from the fiber can be varied through right and left circular and two orthogonal linear states.

_SPECIFICATIONS:	Units	Option 1	Option 2
Wavelength range¹	nm	1300-1610
Insertion loss²	dB	<0.3	<1
PMD	ps	<0.05	-
Return loss	dB	>70
Maximum current	mA	70
Maximum voltage	V	10
Operating temperature range	⁰C	-5 to 70
Storage temperature	⁰C	-40 to +85
Fiber type	.	SMF28	PANDA
Input & output fiber lengths	mm	1000

Notes:

Devices will operate over full wavelength range, higher current is required at longer wavelengths to achieve switching.

Insertion loss for option 2 assumes on-axis alignment of the input polarization. Losses do not include connectors.

PACKAGE STYLE
All dimensions are approximate and may vary slightly

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All-Fiber Polarization Scanner-Controller

_FEATURES	_APPLICATIONS
____• All-fiber	____• Polarization control
____• Simple current control	____• State of polarization scanning
____• Full cycle of Poincare sphere	____• Component testing
____• Low insertion loss	____• Sensor systems
____• High return loss	____• Optical fiber polarimetry

Phoenix Photonics state of polarization (SOP) scanner utilizes three variable all-fiber waveplates to provide full coverage of the Poincare sphere enabling conversion of any input SOP to any required output SOP. Designed to allow continuous variation of the output SOP the device can also be used for polarization control either within a feedback circuit or in open loop configuration.

_SPECIFICATIONS:	Units
Wavelength range ¹	nm	1300-1610
Insertion loss²	dB	<0.8
PMD	nm	<0.15
Return loss	dB	>70
Maximum current³	mA	70
Maximum voltage³	V	10
Scan rate⁴	deg./s	360
Operating temperature range	⁰C	-5 to 70
Storage temperature	⁰C	-40 to +85
Fiber type	.	SMF28
Input & output fiber lengths	mm	1000

Notes:

1.

2.

Devices will operate over full wavelength range, higher current is required at longer wavelengths to achieve switching.
Losses do not include connectors.

3.

4.

Maximum current and voltage for each section of the controller
Scan rate is the rate of polarization change for a cycle of the Poincare sphere for each section

PACKAGE STYLE
All dimensions are approximate and may vary slightly

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All-Fiber Polarization Switch

_FEATURES	_APPLICATIONS
____• Linear mode switching	____• Polarization control
____• Simple current control	____• State of polarization switching
____• All-fiber	____• Optical fiber sensors
____• High return loss	____• Test and measurement
____• PCB compatible	____• PM variable attenuator

Phoenix Photonics polarization switch enables the conversion of an input linear polarization state aligned on the input polarization maintaining fiber axis to be switched between either of the orthogonal output axes. For example an input on the slow axis can be converted to the fast axis at the output or modulated between the fast and the slow axis. This device has been designed to be flexible and easy to operate requiring only a controlled current source for applications in which control of polarization between orthogonal states is required.

An in-line fiber polarizer integrated at the input to provide a highly linear polarization state is optional.

Option 1 - Standard:

This version allows switching between either axis of the output fiber for a single axis input.

Option 2- Integrated fiber polarizer:

This option includes an integrated fiber polarizer in front of the waveplate aligned to the slow axis of the input fiber. The role of the polarizer is to ‘clean’ the linear input state.

_SPECIFICATIONS:	Units	Option 1	Option 2
Wavelength range ¹	nm	1300-1610
Insertion Loss²	dB	<0.5	>1
PMD	dB	-	>30
Return Loss	dB	>70	>70
Maximum current³	mA	70
Maximum Voltage³	V	10
Scan rate	s	<1	<1
Operating Temperature Range	⁰C	-5 to 70	-5 to 70
Storage Temperature	⁰C	-40 to +85	-40 to +85
Fiber type	.	PANDA	PANDA
Input & Output Fiber Lengths	mm	1000	1000

Notes:

Devices will operate over full wavelength range, higher current is required at longer wavelengths to achieve switching.

2.

3.

Insertion loss for option 2 assumes on-axis alignment of the input polarization. Losses do not include connectors.
Extinction ratio is defined as the PDL of the input polarizer.

PACKAGE STYLE
All dimensions are approximate and may vary slightly

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Fiber Optic Polarization Controller

_FEATURES	_APPLICATIONS
____• Low insertion loss	____• DWDM systems
____• Near zero back reflection	____• Optical transmission systems
____• All-fiber construction	____• Measurement systems
____• Wide wavelength operating range	____• Optical fiber sensors
____• Low cost	____• Test and measurement
____• Robust construction	____• PDL measurement

The Phoenix Photonics mechanical polarization controller provides complete
Poincaré sphere coverage by adjusting the three paddles. The design utilizes
three fiber waveplates which can be varied to modify the sate of polarization.

The unit is designed to accept bare fiber and 900mm
coated fiber in the easy to load paddles.

PRODUCT ORDERING INFORMATION

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