818-BB Series
New! 818-BB-51 and 818-BB-51F, 7 GHz biased detectors (830 - 2100 nm), are available as a replacement for 818-BB-50 and 818-BB-50F.
The 818-BB Series Biased Photodetectors are cost effective diagnostic tools suitable for a variety of high speed applications such as viewing of Q-switched, mode-locked, or rapidly modulated laser signals and picosecond laser alignment.
Standard photodetectors (818-BB-20, -21, -30, -31 and -40) consist of free-space, small and large area Si, GaAs or InGaAs detectors, with rise times ranging from 300 ps–1.5 ns. Each unit, other than the 818-BB-40, includes a built-in bias supply consisting of standard 3 V lithium cells and a 50 ohm BNC connector output. The batteries are easily replaceable and by disconnecting the detector from the oscilloscope input, when not in use, you can extend the lifetime of the batteries. The 818-BB-40 comes with an external 24 VDC power supply.
The 818-BB-35 and 818-BB-45 photodiode detector modules offer a low-cost solution for ultra-fast measurements offering a 12.5 GHz bandwidth. These detectors are suitable for applications where detector risetime of <30 psec (<25 psec for 818-BB-35) are required for Q-switched and Ultrafast Laser output analysis. These detectors also utilize 3 V lithium cells (supplied).
The 818-BB-22 UV Enhanced Silicon Detector module consists of a silicon detector with an enhanced ultraviolet response, making it well suited for the fourth harmonic Nd:YAG, YLF or Glass Lasers and Excimer Lasers. Additionally, its large active area and fast response time make it an excellent general-purpose biased detector for the 200 to 1100 nm wavelength region. To attain its fast response, this detector comes with a 24 VDC external power supply.
The 818-BB-21A, -30A, -35A, and -45A, amplified detectors consist of Si or InGaAs detectors having a built-in amplifier with approximately up to 26 dB of gain. It is excellent for viewing rapid modulation of low-power CW lasers or other light sources in the µW regime. The detectors are AC coupled and feature a bandwidth ranging from 1.2GHz up to 10.7 GHz. A wall plug-in style power supply is provided with these units.
The 818-BB-35F, -45F, -35AF and -45AF are 1 meter long single mode fiber coupled high speed detectors with an FC connector.
The 818-BB-21TTL and-30TTL TTL photodetectors are based on our standard detectors with an additional TTL output whose threshold is adjustable, while their analog out exhibits performance characteristics on par with our equivalent standard products.
NOTE-These detectors are very susceptible to damage by electrostatic discharge (ESD). Please use ESD protective measures, like the FK-STRAP , when unpacking and handling these devices.
Detector Responsivity
Silicon
UV Enhanced Silicon
GaAs
InGaAs
Specifications (Unamplified, DC-coupled, 200-1100nm)
|
Model |
818-BB-20
(2) |
818-BB-21
(2) |
818-BB-22
(5)
|
818-BB-40
(5) |
818-BB-45
818-BB-45F
(2,6) |
| Wavelength Range (nm) |
300-1100 |
300-1100 |
200-1100 |
300-1100 |
400-900 |
| Material |
Silicon |
Silicon |
Silicon |
Silicon |
GaAs |
| Rise Time (ps) |
<200 |
<300 |
<1.5 ns |
<30 ns |
<30 |
| Fall Time (ps) |
<350 |
<300 |
<1.5 ns |
<30 ns |
<30 |
| Responsivity |
0.4 mA/W@ 830 nm |
0.4 A/W @ 830 nm |
0.5 A/W @ 830 nm |
0.5 A/W @ 830 nm |
0.45 A/W @ 850 nm |
| Bias Voltage (V) |
3 |
9 |
24 |
24 |
6 |
| Impedance, Load (Ω) |
50 |
50 |
50 |
50 |
50 |
| Cut Off Frequency (GHz) |
>1.5 |
>1.2 |
>200 MHz |
>25 MHz |
>12.5 |
| Active Diameter (µm) |
Square with active area 0.006mm2 |
400 |
2.55 mm |
4.57 mm |
40 |
| Dark Current (nA) |
<1 |
<0.1 |
<10 |
<20 |
<200 p A |
| Junction Capacitance (pF) |
<4 |
<1.5 |
<10 |
<45 |
<0.3 |
| Reverse Breakdown (V) |
40 |
20 |
150 |
50 |
30 |
| Acceptance Angle(7) |
20° |
30° |
50° |
60° |
30° |
| Saturation Current (mA) |
50 |
3 |
2.5 |
2 |
10 |
| NEP (pW/√Hz) |
<0.1 |
<1.5 |
<1 |
<0.16 |
<0.02 |
| Output Connector |
BNC |
BNC |
BNC |
BNC |
SMA |
| Mounting (tapped hole) |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
| Fiber Optic Connector |
- |
- |
- |
- |
single mode FC/PC connectorized fiber optional |
Specifications (Unamplified, DC-coupled, 1000-2100nm)
|
Model |
818-BB-30
(2) |
818-BB-31
(2) |
818-BB-35
818-BB-35F
(2,6,8) |
818-BB-51
818-BB-51F
(5,6) |
| Wavelength Range (nm) |
1000-1600 |
1000-1600 |
1000-1650 |
1475-2100 |
| Material |
InGaAs |
InGaAs |
InGaAs |
Extended InGaAs |
| Rise Time (ps) |
<175 |
<225 |
<25 |
<28 |
| Fall Time (ps) |
<175 |
<225 |
<25 |
<28 |
| Responsivity |
0.8 A/W @ 1300 nm |
0.8 A/W @ 1300 nm |
0.88 A/W @ 1550 nm |
0.95 A/W @ 2.0 um(1)(818-BB-51)
0.95 A/W @ 2.0 um(818-BB-51F) |
| Bias Voltage (V) |
6 |
6 |
6 |
3 |
| Impedance, Load (Ω) |
50 |
50 |
50 |
50 |
| Cut Off Frequency (GHz) |
>2 |
>1.5 |
>12.5 |
>12.5 (3,4) |
| Active Diameter (µm) |
100 |
100 |
32 |
40 |
| Dark Current (nA) |
<1 |
<1 |
<3 |
<1 uA |
| Junction Capacitance (pF) |
<0.75 |
<1.25 |
<0.12 |
- |
| Reverse Breakdown (V) |
25 |
25 |
25 |
- |
| Acceptance Angle(7) |
20° |
- |
- |
- |
| Saturation Current (mA) |
5 |
10 |
10 |
|
| NEP (pW/√Hz) |
<0.1 |
<0.1 |
<0.04 |
<0.6 pW/√Hz @ 2.0 um
818-BB-51
<0.6 pW/√Hz @ 2.0 um
818-BB-51F
|
| Output Connector |
BNC |
BNC |
SMA |
SMA |
| Mounting (tapped hole) |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
| Fiber Optic Connector |
- |
FC input receptacle on detector body |
single mode FC/PC connectorized fiber optional |
single mode FC/PC connectorized fiber optional |
Specifications (Amplified, AC-coupled)
|
Model |
818-BB-21A
(5)
|
818-BB-30A
(5)
|
818-BB-35A
818-BB-35AF
(5,6) |
818-BB-45A
818-BB-45A
(5,6) |
| Wavelength Range (nm) |
300-1100 |
1000-1600 |
1000-1650 |
400-900 |
| Material |
Silicon |
InGaAs |
InGaAs |
GaAs |
| Rise Time (ps) |
<500 |
<400 |
<40 |
<40 |
| Fall Time (ps) |
<500 |
<400 |
<40 |
<40 |
| Conversion Gain (into 50Ω) @830 nm |
450 V/W |
900 V/W |
900 V/W |
530 V/W (818-BB-45A)
380 V/W (818-BB-45AF) |
| Maximum Undistorted Output Voltage |
500 mVp-p |
400 mVp-p |
N/A |
N/A |
| Bias Voltage (V) |
24 |
24 |
5 |
5 |
| Impedance, Load (Ω) |
50 |
50 |
50 |
50 |
| Cut Off Frequency (GHz) |
>1.2(3,4) |
>1.5(3,4) |
>10.7(3,4) |
>10.7 (3,4) |
| Active Diameter (µm) |
400 |
100 |
32 |
40 |
| Acceptance Angle(7) |
10° |
20° |
- |
|
| Saturation Current peak (mA) |
1.3 |
1.3 |
- |
45- |
| NEP (pW/√Hz) |
<60 |
<30 |
<25 |
<45 |
| Output Connector |
BNC |
BNC |
SMA |
SMA |
| Mounting (tapped hole) |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
8-32 and M4 |
| Fiber Optic Connector |
- |
- |
1m SMF pigtail w/ FC (optional) |
1m SMF pigtail w/ FC (optional) |
Specifications (TTL detectors, DC coupled)
|
Model |
818-BB-21TTL
(5)
|
818-BB-30TTL
(5)
|
| Analog Output |
| Wavelength Range (nm) |
450-870 |
1000-1600 |
| Material |
Silicon |
InGaAs |
| Rise Time (ns) |
<8 |
<8 |
| Fall Time (ns) |
<9 |
<9 |
| Responsivity (A/W) |
0.4 @ 830 nm(1) |
0.8 @ 1.3 µm(1) |
| Power Supply (V) |
12 |
12 |
| Impedance, Load (Ω) |
50 |
50 |
| Cut Off Frequency (GHz) |
>1.2(4) |
>2(4) |
| Active Diameter (µm) |
400 |
100 |
| Acceptance Angle(7) |
10° |
20° |
| Saturation Current (mA) |
3 |
5 |
| Output Connector |
BNC |
BNC |
| Mounting (tapped hole) |
8-32 and M4 |
8-32 and M4 |
| Fiber Optic Connector |
- |
- |
| TTL Output |
| Rise Time (ns) |
< 8 |
| Fall Time (nm) |
< 9 |
| Adjustable Trigger Threshold (mV) |
40 - 500 |
| Threshold Monitor |
External |
| Minimum Detectable Pulse Width (ns) |
< 8 |
| Frequency Response |
DC - 60 MHz |
| Logic High (V) |
> 3.0 |
| Logic Low (V) |
< 0.5 |
| Pulse Stretch (when enabled) (ns) |
100 typ. |
| Termination (Ω) |
500 typ. |
| Output Connector |
BNC |
1) Detector has maximum peak voltage of 1.3 V.
2) Batteries are included.
3) AC coupled detector requiring input of >30 kHz.
4) If the full bandwidth is not needed, use lowpass, bandpass or highpass filters to remove excess noise.
5) Includes a universal AC/DC adaptor.
6) The -XXF versions have a 1 m, single-mode fiber pigtail with an FC/PC connector.
7) Half-angle.
8) 818-BB-35F comes with a wall plug supply.
Unamplified Detectors
| | Model | Description | avail raw | Availability | price raw | Price | Qty. MULTI ADD |
|---|
|
818-BB-20 |
Biased Photodetector, 300-1100nm, Silicon, 1.5 GHz |
0 |
In Stock |
368 |
$368.26 |
ADD |
|
818-BB-21 |
Biased Photodetector, 300-1100nm, Silicon, 1.2 GHz |
2 |
2 Weeks |
368 |
$368.26 |
ADD |
|
818-BB-22 |
Biased Photodetector, 200-1100nm, Silicon, 200 MHz |
0 |
In Stock |
520 |
$520.25 |
ADD |
|
818-BB-30 |
Biased Photodetector, 1000-1600nm, InGaAs, 2 GHz |
0 |
In Stock |
410 |
$410.08 |
ADD |
|
818-BB-31 |
Biased Photodetector, 1000-1600nm, InGaAs, FC Receptacle, 1.5 GHz |
0 |
In Stock |
441 |
$441.70 |
ADD |
|
818-BB-35 |
Biased Photodetector, 1000-1650nm, InGaAs, 12.5 GHz |
0 |
In Stock |
1045 |
$1,045.60 |
ADD |
|
818-BB-35F |
Biased Photodetector, 1000-1650nm, InGaAs, 1MmFC Pigtail, 12.5 GHz |
0 |
In Stock |
1287 |
$1,287.37 |
ADD |
|
818-BB-40 |
Biased Photodetector, 300-1100nm Silicon, 25 MHz |
0 |
In Stock |
362 |
$362.14 |
ADD |
|
818-BB-45 |
Biased Photodetector, 400-900nm, GaAs, 12.5 GHz |
0 |
In Stock |
940 |
$940.53 |
ADD |
|
818-BB-45F |
Biased Photodetector, 400-900nm, GaAs, 1m FC Pigtail, 12.5 GHz |
99 |
Call |
1155 |
$1,155.77 |
ADD |
|
818-BB-51 |
Biased Photodetector, 1475–2100 nm, Extended InGaAs, 12.5 GHz |
0 |
In Stock |
736 |
$736.29 |
ADD |
|
818-BB-51F |
Biased Photodetector, 1475–2100 nm, Extended InGaAs, 12.5 GHz, SMF FC/UPC |
99 |
Call |
806 |
$806.99 |
ADD |
Amplified Detectors
| | Model | Description | avail raw | Availability | price raw | Price | Qty. MULTI ADD |
|---|
|
818-BB-21A |
Amplified, Biased Photodetector, AC coupled, 300-1100nm, Silicon, 1.2 GHz |
0 |
In Stock |
627 |
$627.36 |
ADD |
|
818-BB-30A |
Amplified Biased Photodetector, AC coupled, 1000-1600nm, InGaAs, 1.5 GHz |
0 |
In Stock |
627 |
$627.36 |
ADD |
|
818-BB-35A |
Amplified Biased Detector, AC coupled, 1000-1650nm, InGaAs, 10.7 GHz |
4 |
4 Weeks |
2907 |
$2,907.29 |
ADD |
|
818-BB-35AF |
Amplified Biased Detector, AC coupled, 1000-1650nm, InGaAs, 1m FC, 10.7 GHz |
4 |
4 Weeks |
3356 |
$3,356.13 |
ADD |
|
818-BB-45A |
Amplified Biased Photodetector, AC coupled, 400-900nm, GaAs, 10.7 GHz |
0 |
In Stock |
2774 |
$2,774.67 |
ADD |
|
818-BB-45AF |
Amplified Biased Detector, AC coupled, 400-900nm, GaAs, 1M FC Pigtail, 10.7 GHz |
4 |
4 Weeks |
3254 |
$3,254.12 |
ADD |
TTL Detectors
Accessories
The 818-BB series is universal and will work for 110 or 220V.
* Note: for flat top or square wave pulses, negative voltages may read, due to capacitor discharge. For more details, contact a Newport application engineer.
