MELLES GRIOT 4056-S-A01 Omnichrome

( Brand: Melles Griot ), ( Manufacturer Part Number: 4056-S-A01 )

Review MELLES GRIOT Omnichrome Series 56

The **Melles Griot 4056-S-A01 OmniChrome 56** is a high-performance, versatile optical fiber connector designed for demanding applications in telecommunications, data communications, and fiber optic testing. This precision-engineered connector features a **2.5 mm (0.100") ceramic ferrule** with an **OmniChrome 56** coating, which is optimized for superior durability and reliability across a broad spectrum of wavelengths, from **850 nm to 1650 nm**. The **APC (Angled Physical Contact)** polish on the ferrule ensures minimal back reflections, reducing signal loss and improving overall system performance, making it ideal for high-speed data transmission and sensitive optical measurements. Constructed from robust **stainless steel housing**, the connector is built to withstand harsh environments, offering excellent resistance to corrosion and mechanical stress, while its **LC-style design** allows for easy installation and compatibility with a wide range of fiber optic equipment. The **OmniChrome 56** coating enhances signal integrity by minimizing absorption and scattering, ensuring consistent performance even in high-power or long-distance applications. Whether used in fiber optic networks, laboratory testing, or industrial automation, the **4056-S-A01** delivers exceptional reliability, low insertion loss, and long-term stability, making it a trusted choice for professionals demanding precision and performance in their fiber optic systems.

### **Pros and Cons of buying a Melles Griot 4056-S-A01 Omnichrome 56 (532 nm) Laser Diode Module**

#### **Pros**

1. **High Power Output** The 532 nm laser diode module delivers a robust **56 mW** of optical power, making it suitable for applications requiring noticeable illumination or beam expansion.

2. **Stable Wavelength** The 532 nm wavelength is ideal for fluorescence excitation, holography, and certain optical experiments where green light is preferred.

3. **Compact and Modular Design** The module is designed for easy integration into optical setups, with standard connectors (e.g., FC/PC) for compatibility with fiber optics or beam expanders.

4. **Good for Educational and Research Use** Suitable for university labs, physics experiments, or DIY optical projects where a reliable green laser source is needed.

5. **Omnichrome Brand Reputation** Melles Griot (now part of Omnichrome) is a well-known manufacturer of high-quality laser components, ensuring reliability and technical support.

6. **Adjustable Current Control** Some variants allow for current modulation, which can be useful for pulse-width modulation (PWM) or intensity control in experiments.

7. **Long-Term Availability** Being a well-established product, replacement parts and technical documentation are likely to remain accessible.

#### **Cons**

1. **Higher Cost Compared to Consumer Lasers** Unlike cheap green laser pointers (e.g., 5 mW), this module is significantly more expensive, making it less accessible for casual users.

2. **Requires External Driver** Unlike plug-and-play consumer lasers, this module needs a compatible laser diode driver (often sold separately), adding to the initial setup cost.

3. **Potential for Damage Without Proper Handling** High-power lasers (even 56 mW) can cause eye damage if not used with proper safety measures (e.g., beam blocks, goggles). Improper use may also reduce lifespan.

4. **Limited Beam Quality** While suitable for many applications, the beam may not be as collimated or pure as high-end laser diodes, potentially requiring additional optics (e.g., beam expanders).

5. **Warranty and Support Dependencies** Since Melles Griot/Omnichrome is a commercial supplier, warranty and support may require purchasing through authorized channels, which can be less convenient than consumer-grade products.

6. **Not Ideal for High-Precision Applications** For extremely sensitive experiments (e.g., interferometry), a higher-quality laser with better coherence and stability may be necessary.

7. **Power Consumption** Unlike battery-powered laser pointers, this module typically requires a stable power supply, adding complexity to portable setups.

---

### **Conclusion**

The **Melles Griot 4056-S-A01 Omnichrome 56 mW 532 nm laser diode module** is a **high-quality, professional-grade laser** suited for **educational, research, and industrial applications** where a reliable green laser source is needed. It offers **strong performance, stability, and modularity**, but at a **higher cost and with greater complexity** compared to consumer lasers.

- University labs and physics experiments.

- Optical communication or holography setups.

- Applications requiring **moderate to high power** (e.g., fluorescence imaging, beam expansion).

- Users who need **long-term reliability** and **technical support**.

- Casual users or hobbyists on a tight budget.

- Applications requiring **ultra-high precision** (e.g., advanced interferometry).

- Those who need **portable, plug-and-play** solutions without additional drivers.

---

### **Recommendation**

- You are a **student, researcher, or professional** working in optics, laser physics, or related fields.

- You need a **durable, high-power green laser** for experiments requiring **50 mW output**.

- You are willing to invest in **proper safety equipment and drivers** to ensure optimal performance.

- You are looking for a **cheap, consumer-grade green laser** (e.g., for presentations or simple demonstrations).

- You lack experience with **high-power lasers** and cannot safely handle them.

- Your budget is limited, and you can find a **similarly powerful but more affordable alternative** (e.g., from other manufacturers).

For most **serious optical applications**, this module is a **solid choice** just ensure you have the proper **power supply, safety measures, and technical knowledge** to operate it effectively.

Details:

Part no: 4056-S-A01. Used Condition. Note: Dear Valued Buyer. Info: The shipping Price is only for US 48 Contiguous States.

MELLES GRIOT OMNICHROME SERIES 56 4056-S-A01.

part #: 4056sa01 price

• $110.00

specifications industrlasemr:

• brand: Melles Griot
• mpn: 4056-s-a01

seller industrlasemr:

• city: San Jose, California
• rating: 100.0%
• # reviews: 4525

general industrlasemr:

• condition: Used
• Medical/Lab Equipment Attachments Accessories > Lamps, Bulbs Laser Components > Laser Modules Heads

offer industrlasemr:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: February 22, 2026
• availability: In Stock
• best offers: True

returns industrlasemr:

• method: Money back
• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

shipping industrlasemr:

• transit: 4-9 Days
• cost: $98.00
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• type: Fixed

payments industrlasemr:

• wallet: Apple-pay
• other
• credit card: Visa

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