Microwave Photonic Products
PSI-0600 2 GHz link
PSI-1600 Series 12 GHz link
PSI-2600 Series 20 GHz link
PSI-0100 chassis
PSI-1628 Microwave amplifier
PSI-0204 Modulator controller
PSI-0303 Digital modulatorcontroller

Benefits of fiber optic
transmission:
••
•••
•
••

Best space utilization
Lowest signal loss
Highest signal integrity
Highest signal security
Low maintenance cost
Simple installation
application flexibility
EMI/RFI protection

PHOTONIC Systems, Inc.
Photonic Systems, Inc
900 Middlesex Turnpike, Bldg 5Billerica, MA 01821
USAPhone: 978-670-4990
Fax: 978-670-2510E-mail: info@photonicsinc.com

Photonic Systems, Inc (PSI) offers a broad
range of microwave photonic products designed for simple installation, operation andbest-in-class performance. We offer our customers photonic solutions designed by leading microwave photonic technologists tosolve unique signal transmission problems.
Our customers include defense, researchand commercial entities in all corners of theworld.
PSI is pleased to offer the microwave
photonic products outlined in this brochure.
These standard products include direct andexternally modulated fiber optic transmittersfor bandwidths ranging from 2 to 30 GHz.
PSI can modify these products to fit your particular system needs. Please contact us forordering information.

• RF over fiber• GPS timingdistribution• Antenna remoting• Signal concentration• Video distribution• Radio Astronomy• Satellite groundstations• Wireless service
enhancement

PRELIMINARY INFORMATION

PSI-0600 Microwave
Photonic Link
Product Description
The PSI-0600 series microwave photonic link family consists of optical transmitter and receiver modules designed for microwave frequency transmission applications. Offering operating bandwidth of 2 GHz and a wide spur-free dynamic range (SFDR), the PSI-0600s arewell suited for distortion-free transmission in applications such as antenna remoting, phased arrays, or optical delay lines. Providing very
low distortion and low loss per unit distance, these links allow for high preservation of signal fidelity. Use of a PSI-0601 or PSI-0604
photonic link allows significant performance improvement compared to the use of coaxial cables or waveguides. Fiber optic links offer very
high noise immunity and protection from unauthorized access to transmitted signals. Employing precisely controlled distributed feedback(DFB) lasers, these links are highly reliable, complete transmission solutions. The separate transmitter and receiver modules are packaged
in small housings and shipped with AC power supplies.

Photonic Link Specification Highlights
PSI-0601 Microwave Photonic Link

PSI-0604 Amplified Microwave Photonic Link

Parameter

Value *Parameter

Value *

Operating Bandwidth

0.045 -2 GHz

Operating Bandwidth

0.045 -2 GHz

Gain- 30 dB typicalGain

0 dB typical

VSWR≤ 2:1 across bandwidthVSWR≤ 2:1 across BW

Noise Figure≤ 45 dB, 35 dB typical

Noise FigureTBD dB typical

Spur-free dynamic range

98 dB minimum (in 1 Hz)

Spur-free dynamic range

97 dB minimum (in 1 Hz)

Input IP3+10 dBm typicalInput IP3+10 dBm typicalFiber-optic connectors **FC/APC

Fiber-optic connectors **FC/APCDC Power Requirements†

Tx ≤ 7.5 W; Rx ≤ 25 mW

DC Power Requirements†

Tx ≤ 7.5 W; Rx ≤ 25 mW

AC Power Requirements

110 VAC, 60 Hz

AC Power Requirements

110 VAC, 60 Hz* all values specified at 1dB optical loss. Greater loss from optical connectors, splices and fiber span will result in reduction of system performance.
** other connectors available upon request.
† at 25 deg. C.

PSI-0604 Link S21-10Insertion Loss (dB)

Link Transmission
Response (dB)

PSI-0600 Link S21-20-30-40
0.05

1.05

2.05

20
10
0-10-2000.5

1Frequency (GHz)

1.5

2

2.5

Frequency (GHz)
6.15”
5.65”

5.00”

1.80”
1.31”

4x ø 0.120”
Slotted hole

0.720”

1.25”

Revised 6/14/07

0.75”

Subject to change without noticewww.photonicsinc.com

Phone: 978 670 4990

9 pin D-sub
type connector

0.75”

Email: info@photonicsinc.com

0.64”

3PSI-1600 Microwave
Photonic Link
Product Description
The PSI-1600 series microwave photonic link family consists of optical transmitter and receiver modules designed for microwave frequency transmission applications. Offering operating bandwidth in excess of 12 GHz and a wide spur-free dynamic range (SFDR), the PSI1600s are well suited for distortion-free transmission in applications such as antenna remoting, phased arrays, or optical delay lines. Providing very low distortion and low loss per unit distance, these links allow for high preservation of signal fidelity. Use of a PSI-1601 or PSI1604 photonic link allows significant performance improvement compared to the use of coaxial cables or waveguides. Fiber optic links
offer very high noise immunity and protection from unauthorized access to transmitted signals. Employing precisely controlled electroabsorption modulated laser diode (EML) technology, these links are highly reliable, complete transmission solutions. The separate transmitter and receiver modules are packaged in small housings and shipped with AC power supplies.

Photonic Link Specification Highlights
PSI-1601 Microwave Photonic Link

PSI-1604 Amplified Microwave Photonic Link

Parameter

Value *

Parameter

Value *

Operating Bandwidth

0.045 -12 GHz

Operating Bandwidth

0.045 -10 GHzGain≥ - 40 dB, - 30 dB typicalGain

26 dB typical

VSWR≤ 2:1 across bandwidth

VSWR≤ 2:1 across BW

Noise Figure≤ 45 dB, 35 dB typical

Noise Figure

18 dB typical

Spur-free dynamic range≥ 100 dB, 108 dB typical (in 1 Hz)

Spur-free dynamic range

106 dB typical (in 1 Hz)

1-dB compression dynamicrange

130 dB typical (in 1 Hz)

1-dB compression dynamicrange

129 dB typical (in 1 Hz)

Input IP333 dBm typicalInput IP3

4.25 dBm typicalFiber-optic connectors **FC/APC

Fiber-optic connectors **FC/APCDC Power Requirements†

Tx ≤ 7.5 W; Rx ≤ 25 mW

DC Power Requirements†

Tx ≤ 7.5 W; Rx ≤ 25 mW

AC Power Requirements

110 VAC, 60 Hz

AC Power Requirements

110 VAC, 60 Hz* all values
specified at 1dB
optical loss.
Greater loss fromoptical connectors,
splices and fiber
span will result in
reduction ofsystem performance.
** other connectors available uponrequest.
† at 25 deg. C.

PSI-1604 Typical Frequency Response
40
Link Gain (dB)

Link Gain (dB)

PSI-1601Typical Frequency Response
403020100-10-20-30-400246810123020100-10-20-30-40024Frequency (GHz)681012Frequency (GHz)
6.15”
5.65”

5.00”

1.80”
1.31”

4x ø 0.120”
Slotted hole

0.720”

1.25”
0.75”

Revised 6/14/07 Subject to change without noticewww.photonicsinc.com

Phone: 978 670 4990

9 pin D-sub
type connector

0.75”

Email: info@photonicsinc.com

0.64”

PSI-2600 Microwave
Photonic Link
Product Description
The PSI-2600 series microwave photonic link family consists of optical transmitter and receiver module pairs designed for microwave frequency transmission applications. Offering operating bandwidth in excess of 20 GHz and an extremely wide spur-free dynamic range(SFDR), the PSI-2600s are well suited for distortion-free transmission in applications such as antenna remoting, phased arrays, or opticaldelay lines. Offering very low distortion and low loss per unit distance, these links allow for high preservation of signal fidelity. Use of a PSI2604 amplified microwave photonic link offers significant performance improvement compared to the use of coaxial cables orwaveguides. Fiber optic links offer very high noise immunity and protection from unauthorized access to transmitted signals. Employing
external modulation with precisely controlled Lithium Niobate modulators, these links are highly reliable, complete transmission solutions
with separate transmitter and receiver modules packaged in small housings shipped with AC power supplies.

Photonic Link Specification Highlights
PSI-2601 Microwave Photonic Link

PSI-2604 Amplified Microwave Photonic Link

Parameter

Value

Parameter

Value

Operating Bandwidth

0.045 -20 GHz

Operating Bandwidth

0.045 -20 GHzGain-21 dB

Gain+35 dB

VSWR≤ 2:1 across bandwidth

VSWR≤ 2:1 across bandwidth

Noise Figure

32 dB

Noise Figure

6.4 dB

Spur-free dynamic range

108 dB typical (1 Hz)

Spur-free dynamic range

106 dB typical (1 Hz)

1-dB compression dynamicrange

154 dB typical (1Hz)

1-dB compression dynamicrange

148 dB typical (1Hz)

Input IP3

21.1 dBm

Input IP3

-8.5 dBm

Fiber-optic connectors

FC/APC**

Fiber-optic connectors

FC/APC**DC Power Requirements†

Tx ≤ 8 W; Rx ≤ 25 mW

DC Power Requirements†

Tx ≤ 8 W; Rx ≤ 25 mW

AC Power Requirements

110 VAC, 60 Hz

AC Power Requirements

110 VAC, 60 Hz* all values specified at 1dB optical loss. Greater loss from optical connectors, splices and fiber span will result in reduction of system performance.
** other connectors available upon request† at 25 deg. C.

Revised 6/14/07

Subject to change without noticewww.photonicsinc.com

Phone: 978 670 4990

Email: info@photonicsinc.com

PSI-1628 Microwave
AmplifierProduct Description

General RF and Electrical Specifications

The PSI-1628 microwave low noise amplifier module provides 28 dBof gain over an exceptionally wide bandwidth. Designed for amplification in microwave photonic link transmitters and receivers, thesemodules provide high gain with low noise figure over the frequency
range of 45 MHz to 20 GHz. This high level of gain is achieved using
GaAs pHEMT technology and offers noise figure of better than 4 dB
with +16 dBm of output power at 1 dB compression.
Offering high gain and excellent gain flatness over multiple octaves ofbandwidth, the PSI-1628 amplifier is easily used in applications

Parameter

Value (typical)

Output third order intercept point (IP3)+28 dBm

Output power for 1 dB compression (P1dB)+18 dBm

Input return loss

22 dB

Input IP3-3 dBm

Output return loss

15 dB

RF port impedance (input and output)

50 W

RF connector type

SMA

DC power supply+12 V @ <150 mA

where multiple bands are transmitted over a single optical or radio-5 V @ <20 mA

span. When used in conjunction with PSI’s optical link products, users are able to optimally match system losses, noise figure or gain

Operating temperature range

0° to + 60° C

requirements with optical link parameters. Also included is an inte-Dimensions

1.62” x 2.16” x 0.48”

gral bias-T for simple integration with Mach-Zehnder modulators.
Included in the compact sized module are DC power protection circuitry and RF matching to 50 ohms at both input and output SMAports. This design allows for simple integration with microwave components and systems in either laboratory or field installation environments. The amplifier requires minimal DC power derived from +12
and —5 volt power supplies. The PSI-1628 microwave amplifier iscontained in a housing measuring 1.62” x 2.16” x 0.48”.

Pass-band Specifications
Parameter

Value (typical)
0.045-6 GHz

6-8 GHz

8-12 GHz

12-20 GHz

Gain

28 dB

28 dB

28 dB

24 dB

Gain Flatness±1 dB±0.3 dB±0.3 dB±0.5 dB

Noise Figure

4 dB

2.5 dB

2.5 dB

4 dB

Gain (dB)

PSI-1628 Typical Amplifier Gain (S21)

PSI-1628 Amplifier Noise Figure

35.0630.0525.0

4320.0215.0

110.00.045 1.727 3.409 5.091 6.773 8.454 10.14 11.82 13.5 19.75

00

Frequency (GHz)510Frequency (GHz)

Revised 6/14/07 Subject to change without noticewww.photonicsinc.com

Phone: 978 670 4990

Email: info@photonicsinc.com

15

Noise Figure (dB)Frequency RangePSI-0204 Modulator
Bias Controller
Product Description
The PSI—0204-11 chip-scale optical modulator bias controller (MBC)
offers comprehensive control of external optical modulators from a single, small form factor circuit board. When operated with lithium niobate(LiNbO3) modulators, the PSI-0204-11 provides automatic or manualbias control. Users may select automatic tracking of Quad +, Quad -,Minimum or Maximum bias points as shown in Figure 1. Operation at an
externally set manual bias point may also be selected.

PSI-0204-11 Modulator Bias Controller

Features and Benefits
Dither based control compatible with mostoptical modulators
Adjustable Dither amplitude: 20 to 200mVpp
power supply range: +/-12 to +/-18volts
Low operating current: <12mA typical
Small size: 2.5”x 0.7”, 24pin, 0.6” width DIP
Customized Designs available in micro-sizedpackages

Using a dither tone, the PSI0204-11 tracks a user selected operating point to within+/- 1° at 1% dither of Vπ when
operating at quadrature. Ditherfrequency is set at 1 KHz anddither amplitude is user de- Figure 1– Modulator Transfer Function
fined between 20 and200mVpp. Bias point accuracy is maintained over a wide operating
temperature range of 0° to +50° C. Using a common photodetector,
bias point accuracy is easily maintained over a 15dB range of opticalpower.

Designed for easy integration into the user’s optical system, these controllers maintain constant bias point operation by compensating for drift
in a modulator’s transfer function. An external modulation fiber opticaltransmitter is shown in Figure 2 to illustrate how the controller is typically used. Through use of an optical coupler and photodetector, a portion of the transmitted light is detected and fed to the MBC. The dither
tone is applied to the bias voltage output and sampled as a control
mechanism. User settings determine bias point selection, dither frequency and amplitude.

Figure 2: Typical Modulator Beyond standard specifications, PSI can modify the PSI-0204-11 toApplications•••••••Modulator design
Integrated Modulator/TransmittersFiber optic component evaluation
Photonic Test Systems
Spectroscopy systems
Analog communications systems
Telecom transmission

meet the exact requirements of your application. Smaller package sizes
are offered for operation at a single bias point; other designs may also
result in micro-miniature packages.

An optional evaluation kit is available to aid with design-in and proof ofconcept activities. The evaluation board provides a convenient means
to power, control and test the MBC in a laboratory setting. Electricalconnections are provided through either a DB9 or Molex plug. An opticalphotodetector completes the feedback loop. Included in the kit are anevaluation board with photodetector, AC power adapter and an MBCdevice.

Revised 6/14/07 Subject to change without noticewww.photonicsinc.com

Phone: 978 670 4990

Email: info@photonicsinc.com

PSI-0303 DigitalModulator BiasController
Product Description
The PSI—0303 digital modulator bias controller is a full featured laboratory instrument designed for precise control of Mach-Zehnder interferometer fiber optic modulators. Designed to operate in the presence of a digital modulation signal, these controllers accurately preventbias point drift from any of four preset or one user set modulator transfer function points. Through use of a proprietary control algorithm,
the controller maintains bias control without the use of a dither signal.
Measurements are simplified through use of the PSI-0303 in your link or component evaluation set-up. With an internal optical coupler
and photo-detector an internal feedback path automatically establishes lock on the desired bias point.
Automatic control modes allow the operator to select Quad+, MAX, Quad– or MIN bias points. A 10-turn potentiometer provides manualcontrol for fine tuning to a specific bias point. An LCD display shows the bias voltage and optical output power. All features allow for simplified characterization of a modulator’s Vπ, optical insertion loss, optical extinction ratio and rate of bias point drift.

Specifications
Parameter

Typical Value

Fiber TypeSMF-28—

Wavelength

1300-1550

nm

Optical Insertion Loss
Input Optical Power

Units

0.8

dB

Quad + or -0 to –15

dBm

Max or Min

0 to –10

Output DC Bias Voltage+/-15VDC Bias Port Impedance<1ΩModulator Vπ standard Range; unit may be factory set for other values as needed

2.4– 7.6

V

Dither Frequency

n/aBias Point Error

Quad+ or Quad– point+/- 5

Deg.

10, maximum

sec.

0 to -10 dBm input power

5sec.

-10 to –20 dBm input power

Initial Auto Bias Point Acquisition Time
Drift Compensation Response Time

5sec.

Case Dimensions (WxHxD)

5.75x5.25x8.75

In.

Case Weight

3.5

Lb.

AC Adapter Weight

0.5

Lb.

Storage Temperature-25 to +60

Deg. CPower115v +/-9% @25mA—Revised 6/14/07 Subject to change without noticewww.photonicsinc.com

Phone: 978 670 4990

Email: info@photonicsinc.com

Phone: 978-670-4990
Fax: 978-670-2510
E-mail: info@photonicsinc.com

www.photonicsinc.com

Photonic Systems, Inc900 Middlesex Turnpike, Bldg 5Billerica, MA 01821

Information in this brochure is subject to change without notice

USARevised 6/14/07